<?xml version="1.0" encoding="US-ASCII"?>
<!-- EDGAR Online I-Metrix Xcelerate Taxonomy Calculation Linkbase, based on XBRL 2.1  http://www.edgar-online.com/ -->
<!-- Version: 6.13.8 -->
<!-- Round: b9005dbd-838e-4d70-b314-6546e50ad41d -->
<!-- Creation date: 2012-02-24T20:16:02Z -->
<!-- Copyright (c) 2005-2011 EDGAR Online, Inc. All Rights Reserved. -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DocumentDocumentandEntityInformation" roleURI="http://www.ntrs.com/taxonomy/role/DocumentDocumentandEntityInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_StatementOfFinancialPositionUnclassified-DepositBasedOperations" roleURI="http://www.ntrs.com/taxonomy/role/StatementOfFinancialPositionUnclassified-DepositBasedOperations"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_StatementOfFinancialPositionUnclassified-DepositBasedOperationsParen" roleURI="http://www.ntrs.com/taxonomy/role/StatementOfFinancialPositionUnclassified-DepositBasedOperationsParenthetical"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_StatementOfIncomeInterestBasedRevenue" roleURI="http://www.ntrs.com/taxonomy/role/StatementOfIncomeInterestBasedRevenue"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_StatementOfOtherComprehensiveIncome" roleURI="http://www.ntrs.com/taxonomy/role/StatementOfOtherComprehensiveIncome"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_StatementOfIncomeInterestBasedRevenueParen" roleURI="http://www.ntrs.com/taxonomy/role/StatementOfIncomeInterestBasedRevenueParenthetical"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_basi-StatementOfShareholdersEquityAndOtherComprehensiveIncome" roleURI="http://www.ntrs.com/taxonomy/role/StatementOfShareholdersEquityAndOtherComprehensiveIncome"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_StatementOfCashFlowsIndirectDepositBasedOperations" roleURI="http://www.ntrs.com/taxonomy/role/StatementOfCashFlowsIndirectDepositBasedOperations"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisSegregatedByFairValueHierarchyLevel" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisSegregatedByFairValueHierarchyLevel"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisSegregatedByFairValueHierarchyLevelParenthetical" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisSegregatedByFairValueHierarchyLevelParenthetical"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureChangesInLevel3Assets" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureChangesInLevel3Assets"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureFairValueMeasurementsAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureChangesInLevel3Liabilities" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureChangesInLevel3Liabilities"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureAssetsMeasureAtFairValueOnNonrecurringBasis" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureAssetsMeasureAtFairValueOnNonrecurringBasis"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureAssetsMeasureAtFairValueOnNonrecurringBasisParenthetical" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureAssetsMeasureAtFairValueOnNonrecurringBasisParenthetical"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureBookAndFairValuesOfFinancialInstruments" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureBookAndFairValuesOfFinancialInstruments"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureReconciliationOfAmortizedCostToFairValuesOfSecuritiesAvailableForSale" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureReconciliationOfAmortizedCostToFairValuesOfSecuritiesAvailableForSale"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureRemainingMaturityOfSecuritiesAvailableForSale" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureRemainingMaturityOfSecuritiesAvailableForSale"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureReconciliationOfAmortizedCostToFairValuesOfSecuritiesHeldToMaturity" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureReconciliationOfAmortizedCostToFairValuesOfSecuritiesHeldToMaturity"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureRemainingMaturityOfSecuritiesHeldToMaturity" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureRemainingMaturityOfSecuritiesHeldToMaturity"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureSecuritiesAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureSecuritiesAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureSecuritiesContinuousUnrealizedLossPosition" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureSecuritiesContinuousUnrealizedLossPosition"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureBookValuesUltimateDefaultRatesAndLossSeverityRatesForNonAgencyResidentialMortgageBackedSecuritiesPortfolioBySecurityType" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureBookValuesUltimateDefaultRatesAndLossSeverityRatesForNonAgencyResidentialMortgageBackedSecuritiesPortfolioBySecurityType"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureCreditRelatedImpairmentLossesRecognizedInEarningsOnOtherThanTemporarilyImpairedSecurities" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureCreditRelatedImpairmentLossesRecognizedInEarningsOnOtherThanTemporarilyImpairedSecurities"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureCreditRelatedLossesRecognizedInEarningsOnDebtSecuritiesOtherthantemporarilyImpaired" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureCreditRelatedLossesRecognizedInEarningsOnDebtSecuritiesOtherthantemporarilyImpaired"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureDebtSecuritiesHeldForWhichOtherThanTemporaryImpairmentLossHasBeenRecognizedInCurrentPeriodOrPreviously" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureDebtSecuritiesHeldForWhichOtherThanTemporaryImpairmentLossHasBeenRecognizedInCurrentPeriodOrPreviously"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureSecuritiesPurchasedUnderAgreementsToResell" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureSecuritiesPurchasedUnderAgreementsToResell"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureSecuritiesSoldUnderAgreementsToRepurchase" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureSecuritiesSoldUnderAgreementsToRepurchase"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureAmountsOutstandingForLoansAndLeasesBySegmentAndClass" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureAmountsOutstandingForLoansAndLeasesBySegmentAndClass"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureLoansAndLeasesAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureLoansAndLeasesAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureComponentsOfNetInvestmentsInDirectFinanceAndLeverageLeases" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfNetInvestmentsInDirectFinanceAndLeverageLeases"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureFutureMinimumLeasePaymentsToBeReceived" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureFutureMinimumLeasePaymentsToBeReceived"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureLoanAndLeaseSegmentAndClassBalancesSegregatedByBorrowerRatingsInto1To34To5And6To9WatchListCategories" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureLoanAndLeaseSegmentAndClassBalancesSegregatedByBorrowerRatingsInto1To34To5And6To9WatchListCategories"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureBalancesAndDelinquencyStatusOfPerformingAndNonperformingLoansAndLeasesBySegmentAndClassAsWellAsTotalOtherRealEstateOwnedAndNonperformingAssetBalances" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureBalancesAndDelinquencyStatusOfPerformingAndNonperformingLoansAndLeasesBySegmentAndClassAsWellAsTotalOtherRealEstateOwnedAndNonperformingAssetBalances"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureImpairedLoansBySegmentAndClass" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureImpairedLoansBySegmentAndClass"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureNumberOfLoansAndLeasesModifiedInTDRsAndTotalRecordedInvestmentsAndUnpaidPrincipalBalances" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureNumberOfLoansAndLeasesModifiedInTDRsAndTotalRecordedInvestmentsAndUnpaidPrincipalBalances"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureNumberOfLoansAndLeasesModifiedInTroubledDebtRestructuringsWhichBecameNonperformingAsWellAsTotalRecordedInvestmentsAndUnpaidPrincipalBalances" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureNumberOfLoansAndLeasesModifiedInTroubledDebtRestructuringsWhichBecameNonperformingAsWellAsTotalRecordedInvestmentsAndUnpaidPrincipalBalances"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureChangesInAllowanceForCreditLossesBySegment" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureChangesInAllowanceForCreditLossesBySegment"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureAllowancesForCreditLossesAndRecordedInvestmentsInLoansAndLeasesBySegment" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureAllowancesForCreditLossesAndRecordedInvestmentsInLoansAndLeasesBySegment"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureConcentrationsOfCreditRiskAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureConcentrationsOfCreditRiskAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureCommercialRealEstateLoanTypes" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureCommercialRealEstateLoanTypes"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureBuildingsAndEquipment" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureBuildingsAndEquipment"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureBuildingsAndEquipmentAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureBuildingsAndEquipmentAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureLeaseCommitmentsAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureLeaseCommitmentsAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureFutureMinimumLeasePaymentsForNonCancelableOperatingLeases" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureFutureMinimumLeasePaymentsForNonCancelableOperatingLeases"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureFutureMinimumLeasePaymentsForCapitalLeases" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureFutureMinimumLeasePaymentsForCapitalLeases"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureChangesInCarryingAmountsOfGoodwillByBusinessUnit" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureChangesInCarryingAmountsOfGoodwillByBusinessUnit"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureOtherIntangibleAssetsSubjectToAmortization" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureOtherIntangibleAssetsSubjectToAmortization"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureGoodwillAndOtherIntangiblesAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureGoodwillAndOtherIntangiblesAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureSummaryOfSeniorNotesOutstanding" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfSeniorNotesOutstanding"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureSummaryOfLongTermDebtOutstanding" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfLongTermDebtOutstanding"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureSummaryOfLongTermDebtOutstandingParenthetical" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfLongTermDebtOutstandingParenthetical"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureSummaryOfSeniorNotesOutstandingParenthetical" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfSeniorNotesOutstandingParenthetical"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureFloatingRateCapitalDebtAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureFloatingRateCapitalDebtAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureSummaryOfBookValuesOfOutstandingSubordinatedDebentures" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfBookValuesOfOutstandingSubordinatedDebentures"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureStockholdersEquityAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureStockholdersEquityAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureChangesInNumberOfSharesOfCommonStockOutstanding" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureChangesInNumberOfSharesOfCommonStockOutstanding"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureComponentsOfAccumulatedOtherComprehensiveIncomeLoss" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfAccumulatedOtherComprehensiveIncomeLoss"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureComputationsOfNetIncomePerCommonShare" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureComputationsOfNetIncomePerCommonShare"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureNetIncomePerCommonShareAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureNetIncomePerCommonShareAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureComponentsOfNetInterestIncome" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfNetInterestIncome"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureComponentsOfOtherOperatingIncome" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfOtherOperatingIncome"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureComponentsOfOtherOperatingExpense" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfOtherOperatingExpense"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureRestructuringAcquisitionAndIntegrationRelatedChargesAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureRestructuringAcquisitionAndIntegrationRelatedChargesAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureAmountsAndAssociatedExpenseCategoriesOfChargesRecorded" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureAmountsAndAssociatedExpenseCategoriesOfChargesRecorded"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureReconciliationOfTotalProvisionForIncomeTaxesWithAmountsComputedAtFederalTaxRateOf35" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureReconciliationOfTotalProvisionForIncomeTaxesWithAmountsComputedAtFederalTaxRateOf35"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureIncomeTaxesAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureIncomeTaxesAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureReconciliationOfBeginningAndEndingAmountOfUnrecognizedTaxBenefits" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureReconciliationOfBeginningAndEndingAmountOfUnrecognizedTaxBenefits"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureComponentsOfConsolidatedProvisionForIncomeTaxes" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfConsolidatedProvisionForIncomeTaxes"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureTaxChargesBenefitsRecordedDirectlyToStockholdersEquity" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureTaxChargesBenefitsRecordedDirectlyToStockholdersEquity"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureDeferredTaxLiabilitiesAndAssets" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureDeferredTaxLiabilitiesAndAssets"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureEmployeeBenefitsAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureEmployeeBenefitsAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosurePlanStatusOfUSPlanNonUSPlansAndSupplementalPlan" roleURI="http://www.ntrs.com/taxonomy/role/DisclosurePlanStatusOfUSPlanNonUSPlansAndSupplementalPlan"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureAmountsIncludedInAccumulatedOtherComprehensiveIncome" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureAmountsIncludedInAccumulatedOtherComprehensiveIncome"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureNetPeriodicPensionExpenseOfUSPlanNonUSPlansAndSupplementalPlan" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureNetPeriodicPensionExpenseOfUSPlanNonUSPlansAndSupplementalPlan"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureChangeInBenefitObligation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureChangeInBenefitObligation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureEstimatedFutureBenefitPayments" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureEstimatedFutureBenefitPayments"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureChangeInPlanAssets" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureChangeInPlanAssets"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureFairValuesOfUSPensionPlanAssetsByMajorAssetCategoryAndTheirLevelWithinFairValueHierarchy" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureFairValuesOfUSPensionPlanAssetsByMajorAssetCategoryAndTheirLevelWithinFairValueHierarchy"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureChangesInLevel3USPensionPlanAssets" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureChangesInLevel3USPensionPlanAssets"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosurePostretirementHealthCarePlanStatus" roleURI="http://www.ntrs.com/taxonomy/role/DisclosurePostretirementHealthCarePlanStatus"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosurePostretirementHealthCareAmountsIncludedInAccumulatedOtherComprehensiveIncome" roleURI="http://www.ntrs.com/taxonomy/role/DisclosurePostretirementHealthCareAmountsIncludedInAccumulatedOtherComprehensiveIncome"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosurePostretirementHealthCareNetPeriodicPostretirementBenefitExpense" roleURI="http://www.ntrs.com/taxonomy/role/DisclosurePostretirementHealthCareNetPeriodicPostretirementBenefitExpense"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosurePostretirementHealthCareChangeInAccumulatedPostretirementBenefitObligation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosurePostretirementHealthCareChangeInAccumulatedPostretirementBenefitObligation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosurePostretirementHealthCareEstimatedFutureBenefitPayments" roleURI="http://www.ntrs.com/taxonomy/role/DisclosurePostretirementHealthCareEstimatedFutureBenefitPayments"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureHealthCareCostTrendRateAssumptionEffects" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureHealthCareCostTrendRateAssumptionEffects"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureCompensationExpenseForShareBasedPaymentArrangementsAndAssociatedTaxImpacts" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureCompensationExpenseForShareBasedPaymentArrangementsAndAssociatedTaxImpacts"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureShareBasedCompensationPlansAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureShareBasedCompensationPlansAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureWeightedAverageAssumptionsUsedForOptionsGranted" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureWeightedAverageAssumptionsUsedForOptionsGranted"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureInformationPertainingToStockOptionsGrantedVestedAndExercised" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureInformationPertainingToStockOptionsGrantedVestedAndExercised"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureChangesInNonvestedStockOptions" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureChangesInNonvestedStockOptions"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureStatusOfStockOptionsUnderPlanAnd1992Plan" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureStatusOfStockOptionsUnderPlanAnd1992Plan"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureStatusOfOutstandingStockAndStockUnitAwardsUnderPlanAnd1992Plan" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureStatusOfOutstandingStockAndStockUnitAwardsUnderPlanAnd1992Plan"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureSummaryOfNonvestedStockAndStockUnitAwards" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfNonvestedStockAndStockUnitAwards"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureCashBasedCompensationPlansAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureCashBasedCompensationPlansAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureContingentLiabilitiesAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureContingentLiabilitiesAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureDerivativeFinancialInstrumentsAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureDerivativeFinancialInstrumentsAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureNotionalAndFairValueAmountsOfClientrelatedAndTradingDerivativeFinancialInstruments" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureNotionalAndFairValueAmountsOfClientrelatedAndTradingDerivativeFinancialInstruments"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureGainsAndLossesRecordedInConsolidatedStatementOfIncomeRelatedToClientRelatedAndTradingDerivativeFinancialInstruments" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureGainsAndLossesRecordedInConsolidatedStatementOfIncomeRelatedToClientRelatedAndTradingDerivativeFinancialInstruments"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureTypesAndClassificationsOfDerivativeInstrumentsDesignatedAsHedges" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureTypesAndClassificationsOfDerivativeInstrumentsDesignatedAsHedges"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureGainsAndLossesRecordedInConsolidatedStatementOfIncomeRelatedToFairValueHedges" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureGainsAndLossesRecordedInConsolidatedStatementOfIncomeRelatedToFairValueHedges"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureCashFlowHedgeDerivativeGainsAndLossesRecognizedInAOCIAndTheAmountsReclassifiedToEarnings" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureCashFlowHedgeDerivativeGainsAndLossesRecognizedInAOCIAndTheAmountsReclassifiedToEarnings"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureNetInvestmentHedgeGainsAndLossesRecognizedInAOCI" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureNetInvestmentHedgeGainsAndLossesRecognizedInAOCI"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureTypesAndClassificationsOfRiskManagementDerivativeInstrumentsNotFormallyDesignatedAsHedgesIncludingNotionalAndFairValues" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureTypesAndClassificationsOfRiskManagementDerivativeInstrumentsNotFormallyDesignatedAsHedgesIncludingNotionalAndFairValues"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureGainsAndLossesRecordedInConsolidatedStatementOfIncomeRelatedToDerivativeInstrumentsNotFormallyDesignatedAsHedges" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureGainsAndLossesRecordedInConsolidatedStatementOfIncomeRelatedToDerivativeInstrumentsNotFormallyDesignatedAsHedges"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureContractualAmountsOfCommitmentsAndLettersOfCredit" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureContractualAmountsOfCommitmentsAndLettersOfCredit"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureContractualAmountsOfCommitmentsAndLettersOfCreditParenthetical" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureContractualAmountsOfCommitmentsAndLettersOfCreditParenthetical"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureOffBalanceSheetFinancialInstrumentsAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureOffBalanceSheetFinancialInstrumentsAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureVariableInterestEntitiesAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureVariableInterestEntitiesAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosurePledgedAndRestrictedAssetsAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosurePledgedAndRestrictedAssetsAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureRestrictionsOnSubsidiaryDividendsAndLoansOrAdvancesAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureRestrictionsOnSubsidiaryDividendsAndLoansOrAdvancesAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureEarningsContributionOfNorthernTrustsBusinessUnits" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureEarningsContributionOfNorthernTrustsBusinessUnits"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureEarningsContributionOfNorthernTrustsBusinessUnitsParenthetical" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureEarningsContributionOfNorthernTrustsBusinessUnitsParenthetical"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureBusinessUnitsAndRelatedInformationAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureBusinessUnitsAndRelatedInformationAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureDistributionOfTotalAssetsAndOperatingPerformance" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureDistributionOfTotalAssetsAndOperatingPerformance"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureRegulatoryCapitalRequirementsAdditionalInformation" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureRegulatoryCapitalRequirementsAdditionalInformation"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureRiskBasedCapitalAmountsAndRatiosForNorthernTrustAndForEachOfItsUSSubsidiaryBanksWhoseNetIncomeFor2011Or2010Exceeded10OfTheConsolidatedTotal" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureRiskBasedCapitalAmountsAndRatiosForNorthernTrustAndForEachOfItsUSSubsidiaryBanksWhoseNetIncomeFor2011Or2010Exceeded10OfTheConsolidatedTotal"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureCondensedBalanceSheet" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureCondensedBalanceSheet"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureCondensedStatementOfIncome" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureCondensedStatementOfIncome"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#DisclosureCondensedStatementOfCashFlows" roleURI="http://www.ntrs.com/taxonomy/role/DisclosureCondensedStatementOfCashFlows"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsBasisOfPresentationAndSignificantAccountingPoliciesTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsBasisOfPresentationAndSignificantAccountingPoliciesTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsBasisOfPresentationAndSignificantAccountingPoliciesTextBlockPolicies" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsBasisOfPresentationAndSignificantAccountingPoliciesTextBlockPolicies"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsDescriptionOfNewAccountingPronouncementsNotYetAdopted" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDescriptionOfNewAccountingPronouncementsNotYetAdopted"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsFairValueDisclosuresTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsFairValueDisclosuresTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsFairValueDisclosuresTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsFairValueDisclosuresTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsInvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsInvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsInvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsInvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsRepurchaseAgreementsResaleAgreementsSecuritiesBorrowedAndSecuritiesLoanedDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRepurchaseAgreementsResaleAgreementsSecuritiesBorrowedAndSecuritiesLoanedDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsRepurchaseAgreementsResaleAgreementsSecuritiesBorrowedAndSecuritiesLoanedDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRepurchaseAgreementsResaleAgreementsSecuritiesBorrowedAndSecuritiesLoanedDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsLoansNotesTradeAndOtherReceivablesDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsLoansNotesTradeAndOtherReceivablesDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsLoansNotesTradeAndOtherReceivablesDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsLoansNotesTradeAndOtherReceivablesDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsAllowanceForCreditLossesTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsAllowanceForCreditLossesTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsAllowanceForCreditLossesTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsAllowanceForCreditLossesTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsConcentrationRiskDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsConcentrationRiskDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsConcentrationRiskDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsConcentrationRiskDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsLeasesOfLesseeDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsLeasesOfLesseeDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsLeasesOfLesseeDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsLeasesOfLesseeDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsGoodwillAndIntangibleAssetsDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsGoodwillAndIntangibleAssetsDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsGoodwillAndIntangibleAssetsDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsGoodwillAndIntangibleAssetsDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsDebtDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDebtDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsDebtDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDebtDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsSubordinatedBorrowingsDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsSubordinatedBorrowingsDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsSubordinatedBorrowingsDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsSubordinatedBorrowingsDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsComprehensiveIncomeNoteTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsComprehensiveIncomeNoteTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsComprehensiveIncomeNoteTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsComprehensiveIncomeNoteTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsEarningsPerShareTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsEarningsPerShareTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsEarningsPerShareTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsEarningsPerShareTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsInterestIncomeAndInterestExpenseDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsInterestIncomeAndInterestExpenseDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsInterestIncomeAndInterestExpenseDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsInterestIncomeAndInterestExpenseDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsOtherOperatingIncomeTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsOtherOperatingIncomeTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsOtherOperatingIncomeTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsOtherOperatingIncomeTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsOtherOperatingExpensesTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsOtherOperatingExpensesTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsOtherOperatingExpensesTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsOtherOperatingExpensesTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsScheduleOfRestructuringAcquisitionAndIntegrationRelatedChargesTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsScheduleOfRestructuringAcquisitionAndIntegrationRelatedChargesTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsScheduleOfRestructuringAcquisitionAndIntegrationRelatedChargesTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsScheduleOfRestructuringAcquisitionAndIntegrationRelatedChargesTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsIncomeTaxDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsIncomeTaxDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsPensionAndOtherPostretirementBenefitsDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsPensionAndOtherPostretirementBenefitsDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsPensionAndOtherPostretirementBenefitsDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsPensionAndOtherPostretirementBenefitsDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsCashBasedCompensationPlansDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsCashBasedCompensationPlansDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsLossContingencyDisclosures" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsLossContingencyDisclosures"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsDerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsDerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsScheduleOfFairValueOffBalanceSheetRisksTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsScheduleOfFairValueOffBalanceSheetRisksTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsScheduleOfFairValueOffBalanceSheetRisksTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsScheduleOfFairValueOffBalanceSheetRisksTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsDisclosureOfVariableInterestEntitiesTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfVariableInterestEntitiesTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsRestrictedAssetsDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRestrictedAssetsDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsRestrictionsOnDividendsLoansAndAdvancesTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRestrictionsOnDividendsLoansAndAdvancesTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsSegmentReportingDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsSegmentReportingDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsSegmentReportingDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsSegmentReportingDisclosureTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsCondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsCondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock"/>
  <roleRef xlink:type="simple" xlink:href="ntrs-20111231.xsd#Role_NotesToFinancialStatementsCondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlockTables" roleURI="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsCondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlockTables"/>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DocumentDocumentandEntityInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/StatementOfFinancialPositionUnclassified-DepositBasedOperations">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="us-gaap_AvailableForSaleSecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndDueFromBanks" xlink:label="us-gaap_CashAndDueFromBanks"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_ClientSecuritySettlementReceivables" xlink:label="ntrs_ClientSecuritySettlementReceivables"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockValue" xlink:label="us-gaap_CommonStockValue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Deposits" xlink:label="us-gaap_Deposits"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DepositsSavingsDeposits" xlink:label="us-gaap_DepositsSavingsDeposits"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FederalFundsPurchased" xlink:label="us-gaap_FederalFundsPurchased"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell" xlink:label="us-gaap_FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Goodwill" xlink:label="us-gaap_Goodwill"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecurities" xlink:label="us-gaap_HeldToMaturitySecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestBearingDepositLiabilitiesForeign" xlink:label="us-gaap_InterestBearingDepositLiabilitiesForeign"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestBearingDepositsInBanks" xlink:label="us-gaap_InterestBearingDepositsInBanks"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_InterestBearingDepositsInFederalReserveAndOtherCentralBanks" xlink:label="ntrs_InterestBearingDepositsInFederalReserveAndOtherCentralBanks"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableAllowance" xlink:label="us-gaap_LoansAndLeasesReceivableAllowance"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableCommercial" xlink:label="us-gaap_LoansAndLeasesReceivableCommercial"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableConsumer" xlink:label="us-gaap_LoansAndLeasesReceivableConsumer"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:label="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_MarketableSecurities" xlink:label="us-gaap_MarketableSecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoninterestBearingDepositLiabilitiesDomestic" xlink:label="us-gaap_NoninterestBearingDepositLiabilitiesDomestic"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoninterestBearingDepositLiabilitiesForeign" xlink:label="us-gaap_NoninterestBearingDepositLiabilitiesForeign"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherAssets" xlink:label="us-gaap_OtherAssets"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherBorrowings" xlink:label="us-gaap_OtherBorrowings"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherLiabilities" xlink:label="us-gaap_OtherLiabilities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherLongTermDebt" xlink:label="us-gaap_OtherLongTermDebt"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchase" xlink:label="us-gaap_SecuritiesSoldUnderAgreementsToRepurchase"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SeniorNotes" xlink:label="us-gaap_SeniorNotes"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="us-gaap_StockholdersEquity"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_TimeDeposits" xlink:label="us-gaap_TimeDeposits"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_TradingSecurities" xlink:label="us-gaap_TradingSecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="us-gaap_TreasuryStockValue"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_TrustPreferredSecurities" xlink:label="ntrs_TrustPreferredSecurities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_CashAndDueFromBanks" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_InterestBearingDepositsInBanks" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="ntrs_InterestBearingDepositsInFederalReserveAndOtherCentralBanks" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_MarketableSecurities" order="1.0800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" order="1.1100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_LoansAndLeasesReceivableAllowance" order="1.1200" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_PropertyPlantAndEquipmentNet" order="1.1300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="ntrs_ClientSecuritySettlementReceivables" order="1.1400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Goodwill" order="1.1500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_OtherAssets" order="1.1600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Deposits" xlink:to="us-gaap_NoninterestBearingDepositLiabilitiesDomestic" order="1.1700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Deposits" xlink:to="us-gaap_DepositsSavingsDeposits" order="1.1800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Deposits" xlink:to="us-gaap_TimeDeposits" order="1.1900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Deposits" xlink:to="us-gaap_NoninterestBearingDepositLiabilitiesForeign" order="1.2000" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Deposits" xlink:to="us-gaap_InterestBearingDepositLiabilitiesForeign" order="1.2100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Deposits" order="1.2200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_FederalFundsPurchased" order="1.2300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_SecuritiesSoldUnderAgreementsToRepurchase" order="1.2400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_OtherBorrowings" order="1.2500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_SeniorNotes" order="1.2600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_OtherLongTermDebt" order="1.2700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="ntrs_TrustPreferredSecurities" order="1.2800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_OtherLiabilities" order="1.2900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_Liabilities" order="1.3000" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_StockholdersEquity" order="1.3600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_LoansAndLeasesReceivableCommercial" order="1.0900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_LoansAndLeasesReceivableConsumer" order="1.1000" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_MarketableSecurities" xlink:to="us-gaap_AvailableForSaleSecurities" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_MarketableSecurities" xlink:to="us-gaap_HeldToMaturitySecurities" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_MarketableSecurities" xlink:to="us-gaap_TradingSecurities" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_CommonStockValue" order="1.3100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_AdditionalPaidInCapitalCommonStock" order="1.3200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit" order="1.3300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" order="1.3400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_TreasuryStockValue" order="1.3500" weight="-1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/StatementOfFinancialPositionUnclassified-DepositBasedOperationsParenthetical">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/StatementOfIncomeInterestBasedRevenue">
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_EmployeeBenefits" xlink:label="ntrs_EmployeeBenefits"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_EquipmentAndSoftwareExpense" xlink:label="ntrs_EquipmentAndSoftwareExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestAndDividendIncomeOperating" xlink:label="us-gaap_InterestAndDividendIncomeOperating"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpense" xlink:label="us-gaap_InterestExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:label="us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="us-gaap_InterestIncomeExpenseNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoninterestExpense" xlink:label="us-gaap_NoninterestExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoninterestIncome" xlink:label="us-gaap_NoninterestIncome"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoninterestIncomeOtherOperatingIncome" xlink:label="us-gaap_NoninterestIncomeOtherOperatingIncome"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OccupancyNet" xlink:label="us-gaap_OccupancyNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherNoninterestExpense" xlink:label="us-gaap_OtherNoninterestExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PrincipalInvestmentGainsLosses" xlink:label="us-gaap_PrincipalInvestmentGainsLosses"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProfessionalFees" xlink:label="us-gaap_ProfessionalFees"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProvisionForLoanAndLeaseLosses" xlink:label="us-gaap_ProvisionForLoanAndLeaseLosses"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_SalariesWagesAndIncentives" xlink:label="ntrs_SalariesWagesAndIncentives"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_SecurityCommissionsandTradingIncome" xlink:label="ntrs_SecurityCommissionsandTradingIncome"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_TreasuryManagementFees" xlink:label="ntrs_TreasuryManagementFees"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_TrustInvestmentAndOtherServicingFees" xlink:label="ntrs_TrustInvestmentAndOtherServicingFees"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_VisaIndemnificationChargesBenefit" xlink:label="ntrs_VisaIndemnificationChargesBenefit"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="us-gaap_NoninterestIncome" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss" order="1.1200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="us-gaap_NoninterestExpense" order="1.2000" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:to="us-gaap_InterestIncomeExpenseNet" order="1.1000" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:to="us-gaap_ProvisionForLoanAndLeaseLosses" order="1.1100" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestIncomeExpenseNet" xlink:to="us-gaap_InterestAndDividendIncomeOperating" order="1.0800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestIncomeExpenseNet" xlink:to="us-gaap_InterestExpense" order="1.0900" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" order="1.2100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_IncomeTaxExpenseBenefit" order="1.2200" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestExpense" xlink:to="ntrs_SalariesWagesAndIncentives" order="1.1300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestExpense" xlink:to="ntrs_EmployeeBenefits" order="1.1400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestExpense" xlink:to="us-gaap_ProfessionalFees" order="1.1500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestExpense" xlink:to="ntrs_EquipmentAndSoftwareExpense" order="1.1600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestExpense" xlink:to="us-gaap_OccupancyNet" order="1.1700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestExpense" xlink:to="ntrs_VisaIndemnificationChargesBenefit" order="1.1800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestExpense" xlink:to="us-gaap_OtherNoninterestExpense" order="1.1900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestIncome" xlink:to="ntrs_TrustInvestmentAndOtherServicingFees" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestIncome" xlink:to="us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestIncome" xlink:to="ntrs_TreasuryManagementFees" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestIncome" xlink:to="ntrs_SecurityCommissionsandTradingIncome" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestIncome" xlink:to="us-gaap_NoninterestIncomeOtherOperatingIncome" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestIncome" xlink:to="us-gaap_PrincipalInvestmentGainsLosses" order="1.0600" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/StatementOfOtherComprehensiveIncome">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome" xlink:label="us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease" xlink:label="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_NetIncomeLoss" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease" xlink:to="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease" xlink:to="us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease" xlink:to="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease" xlink:to="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease" order="1.0600" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/StatementOfIncomeInterestBasedRevenueParenthetical">
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_InvestmentSecurityGainsLossesNet" xlink:label="ntrs_InvestmentSecurityGainsLossesNet"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_OtherThanTemporaryImpairmentLosses" xlink:label="ntrs_OtherThanTemporaryImpairmentLosses"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent" xlink:label="us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PrincipalInvestmentGainsLosses" xlink:label="us-gaap_PrincipalInvestmentGainsLosses"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_PrincipalInvestmentGainsLosses" xlink:to="ntrs_OtherThanTemporaryImpairmentLosses" order="1.0100" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_PrincipalInvestmentGainsLosses" xlink:to="us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent" order="1.0200" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_PrincipalInvestmentGainsLosses" xlink:to="ntrs_InvestmentSecurityGainsLossesNet" order="1.0300" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/StatementOfShareholdersEquityAndOtherComprehensiveIncome">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/StatementOfCashFlowsIndirectDepositBasedOperations">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:label="us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_AmortizationOfComputerSoftware" xlink:label="ntrs_AmortizationOfComputerSoftware"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="us-gaap_AmortizationOfIntangibleAssets"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_CapitalSupportAgreementPayments" xlink:label="ntrs_CapitalSupportAgreementPayments"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_ClientSupportRelatedCharges" xlink:label="ntrs_ClientSupportRelatedCharges"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DepreciationNonproduction" xlink:label="us-gaap_DepreciationNonproduction"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents" xlink:label="us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainLossOnInvestments" xlink:label="us-gaap_GainLossOnInvestments"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:label="us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInDeposits" xlink:label="us-gaap_IncreaseDecreaseInDeposits"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInDerivativeAssets" xlink:label="us-gaap_IncreaseDecreaseInDerivativeAssets"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInFederalFundsPurchased" xlink:label="us-gaap_IncreaseDecreaseInFederalFundsPurchased"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:label="us-gaap_IncreaseDecreaseInInterestPayableNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="us-gaap_IncreaseDecreaseInReceivables"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_NetChangeInClientSecuritySettlementReceivables" xlink:label="ntrs_NetChangeInClientSecuritySettlementReceivables"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForProceedsFromLoansAndLeases" xlink:label="us-gaap_PaymentsForProceedsFromLoansAndLeases"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInterestEarningAssets" xlink:label="us-gaap_PaymentsForProceedsFromOtherInterestEarningAssets"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock" xlink:label="us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForRepurchaseOfWarrants" xlink:label="us-gaap_PaymentsForRepurchaseOfWarrants"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForSoftware" xlink:label="us-gaap_PaymentsForSoftware"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="us-gaap_PaymentsOfDividendsCommonStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock" xlink:label="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecurities" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireHeldToMaturitySecurities" xlink:label="us-gaap_PaymentsToAcquireHeldToMaturitySecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PensionContributions" xlink:label="us-gaap_PensionContributions"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities" xlink:label="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet" xlink:label="us-gaap_ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromPaymentsForInInterestBearingDepositsInBanks" xlink:label="us-gaap_ProceedsFromPaymentsForInInterestBearingDepositsInBanks"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase" xlink:label="us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfShortTermDebt" xlink:label="us-gaap_ProceedsFromRepaymentsOfShortTermDebt"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" xlink:label="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="us-gaap_ProceedsFromStockOptionsExercised"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_ProceedsFromTermFederalFundsPurchased" xlink:label="ntrs_ProceedsFromTermFederalFundsPurchased"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProvisionForLoanAndLeaseLosses" xlink:label="us-gaap_ProvisionForLoanAndLeaseLosses"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="us-gaap_RepaymentsOfLongTermDebt"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_RepaymentsOfTermFederalFundsPurchased" xlink:label="ntrs_RepaymentsOfTermFederalFundsPurchased"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_VisaIndemnificationChargesBenefit" xlink:label="ntrs_VisaIndemnificationChargesBenefit"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities" order="1.1800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities" order="1.3200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities" order="1.4900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents" order="1.5000" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_IncreaseDecreaseInDeposits" order="1.3300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_IncreaseDecreaseInFederalFundsPurchased" order="1.3400" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase" order="1.3500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromRepaymentsOfShortTermDebt" order="1.3600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="ntrs_ProceedsFromTermFederalFundsPurchased" order="1.3700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="ntrs_RepaymentsOfTermFederalFundsPurchased" order="1.3800" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromIssuanceOfLongTermDebt" order="1.3900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_RepaymentsOfLongTermDebt" order="1.4000" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsForRepurchaseOfCommonStock" order="1.4100" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromStockOptionsExercised" order="1.4200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsOfDividendsCommonStock" order="1.4300" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock" order="1.4400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock" order="1.4500" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock" order="1.4600" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsForRepurchaseOfWarrants" order="1.4700" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" order="1.4800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet" order="1.1900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_ProceedsFromPaymentsForInInterestBearingDepositsInBanks" order="1.2000" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsForProceedsFromOtherInterestEarningAssets" order="1.2100" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsToAcquireHeldToMaturitySecurities" order="1.2200" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities" order="1.2300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsToAcquireAvailableForSaleSecurities" order="1.2400" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" order="1.2500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsForProceedsFromLoansAndLeases" order="1.2600" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" order="1.2700" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsForSoftware" order="1.2800" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="ntrs_NetChangeInClientSecuritySettlementReceivables" order="1.2900" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" order="1.3000" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsForProceedsFromOtherInvestingActivities" order="1.3100" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetIncomeLoss" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_GainLossOnInvestments" order="1.0200" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" order="1.0300" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_ProvisionForLoanAndLeaseLosses" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_DepreciationNonproduction" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="ntrs_AmortizationOfComputerSoftware" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_AmortizationOfIntangibleAssets" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="ntrs_ClientSupportRelatedCharges" order="1.0800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="ntrs_CapitalSupportAgreementPayments" order="1.0900" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" order="1.1000" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_PensionContributions" order="1.1100" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="ntrs_VisaIndemnificationChargesBenefit" order="1.1200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_DeferredIncomeTaxExpenseBenefit" order="1.1300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInReceivables" order="1.1400" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInInterestPayableNet" order="1.1500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInDerivativeAssets" order="1.1600" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" order="1.1700" weight="-1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisSegregatedByFairValueHierarchyLevel">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="us-gaap_AssetsFairValueDisclosure"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentsFairValueDisclosure" xlink:label="us-gaap_InvestmentsFairValueDisclosure"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_TotalOtherAssetsFairValueDisclosure" xlink:label="ntrs_TotalOtherAssetsFairValueDisclosure"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsFairValueDisclosure" xlink:to="us-gaap_InvestmentsFairValueDisclosure" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AssetsFairValueDisclosure" xlink:to="ntrs_TotalOtherAssetsFairValueDisclosure" order="1.0200" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisSegregatedByFairValueHierarchyLevelParenthetical">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureChangesInLevel3Assets">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureChangesInLevel3Liabilities">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureAssetsMeasureAtFairValueOnNonrecurringBasis">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureAssetsMeasureAtFairValueOnNonrecurringBasisParenthetical">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureBookAndFairValuesOfFinancialInstruments">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureReconciliationOfAmortizedCostToFairValuesOfSecuritiesAvailableForSale">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="us-gaap_AvailableForSaleSecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:label="us-gaap_AvailableForSaleSecuritiesAmortizedCost"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableforsaleSecuritiesGrossUnrealizedGain" xlink:label="us-gaap_AvailableforsaleSecuritiesGrossUnrealizedGain"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLosses1" xlink:label="us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLosses1"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AvailableForSaleSecurities" xlink:to="us-gaap_AvailableForSaleSecuritiesAmortizedCost" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AvailableForSaleSecurities" xlink:to="us-gaap_AvailableforsaleSecuritiesGrossUnrealizedGain" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AvailableForSaleSecurities" xlink:to="us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLosses1" order="1.0300" weight="-1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureRemainingMaturityOfSecuritiesAvailableForSale">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost" xlink:to="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost" xlink:to="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost" xlink:to="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost" xlink:to="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:to="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:to="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:to="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:to="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue" order="1.0800" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureReconciliationOfAmortizedCostToFairValuesOfSecuritiesHeldToMaturity">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecurities" xlink:label="us-gaap_HeldToMaturitySecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesFairValue" xlink:label="us-gaap_HeldToMaturitySecuritiesFairValue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldtomaturitySecuritiesUnrecognizedHoldingGain" xlink:label="us-gaap_HeldtomaturitySecuritiesUnrecognizedHoldingGain"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesUnrecognizedHoldingLoss" xlink:label="us-gaap_HeldToMaturitySecuritiesUnrecognizedHoldingLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_HeldToMaturitySecuritiesFairValue" xlink:to="us-gaap_HeldToMaturitySecurities" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_HeldToMaturitySecuritiesFairValue" xlink:to="us-gaap_HeldtomaturitySecuritiesUnrecognizedHoldingGain" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_HeldToMaturitySecuritiesFairValue" xlink:to="us-gaap_HeldToMaturitySecuritiesUnrecognizedHoldingLoss" order="1.0300" weight="-1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureRemainingMaturityOfSecuritiesHeldToMaturity">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecurities" xlink:label="us-gaap_HeldToMaturitySecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount" xlink:label="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_HeldToMaturitySecuritiesFairValue" xlink:label="us-gaap_HeldToMaturitySecuritiesFairValue"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_HeldToMaturitySecurities" xlink:to="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_HeldToMaturitySecurities" xlink:to="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_HeldToMaturitySecurities" xlink:to="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_HeldToMaturitySecurities" xlink:to="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_HeldToMaturitySecuritiesFairValue" xlink:to="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_HeldToMaturitySecuritiesFairValue" xlink:to="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_HeldToMaturitySecuritiesFairValue" xlink:to="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_HeldToMaturitySecuritiesFairValue" xlink:to="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue" order="1.0800" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureSecuritiesAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureSecuritiesContinuousUnrealizedLossPosition">
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses" xlink:label="ntrs_SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_SecuritiesContinuousUnrealizedLossPositionAggregateLosses" xlink:label="ntrs_SecuritiesContinuousUnrealizedLossPositionAggregateLosses"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_SecuritiesContinuousUnrealizedLossPositionFairValue" xlink:label="ntrs_SecuritiesContinuousUnrealizedLossPositionFairValue"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_SecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses" xlink:label="ntrs_SecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:label="ntrs_SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:label="ntrs_SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_SecuritiesContinuousUnrealizedLossPositionAggregateLosses" xlink:to="ntrs_SecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_SecuritiesContinuousUnrealizedLossPositionAggregateLosses" xlink:to="ntrs_SecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_SecuritiesContinuousUnrealizedLossPositionFairValue" xlink:to="ntrs_SecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_SecuritiesContinuousUnrealizedLossPositionFairValue" xlink:to="ntrs_SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" order="1.0300" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureBookValuesUltimateDefaultRatesAndLossSeverityRatesForNonAgencyResidentialMortgageBackedSecuritiesPortfolioBySecurityType">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureCreditRelatedImpairmentLossesRecognizedInEarningsOnOtherThanTemporarilyImpairedSecurities">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent" xlink:label="us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_OtherThanTemporaryImpairmentLossesRecognizedInEarnings" xlink:label="ntrs_OtherThanTemporaryImpairmentLossesRecognizedInEarnings"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_TotalOtherThanTemporaryImpairmentLossesOnInvestments" xlink:label="ntrs_TotalOtherThanTemporaryImpairmentLossesOnInvestments"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_OtherThanTemporaryImpairmentLossesRecognizedInEarnings" xlink:to="ntrs_TotalOtherThanTemporaryImpairmentLossesOnInvestments" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_OtherThanTemporaryImpairmentLossesRecognizedInEarnings" xlink:to="us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent" order="1.0200" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureCreditRelatedLossesRecognizedInEarningsOnDebtSecuritiesOtherthantemporarilyImpaired">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureDebtSecuritiesHeldForWhichOtherThanTemporaryImpairmentLossHasBeenRecognizedInCurrentPeriodOrPreviously">
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_AccumulatedOtherComprehensiveIncomeLossDebtSecuritiesAdjustmentTax" xlink:label="ntrs_AccumulatedOtherComprehensiveIncomeLossDebtSecuritiesAdjustmentTax"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_AccumulatedOtherComprehensiveIncomeLossNoncreditPortionOfOtherThanTemporarilyImpairedSecuritiesBeforeTax" xlink:label="ntrs_AccumulatedOtherComprehensiveIncomeLossNoncreditPortionOfOtherThanTemporarilyImpairedSecuritiesBeforeTax"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities" xlink:to="ntrs_AccumulatedOtherComprehensiveIncomeLossNoncreditPortionOfOtherThanTemporarilyImpairedSecuritiesBeforeTax" order="1.0100" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities" xlink:to="ntrs_AccumulatedOtherComprehensiveIncomeLossDebtSecuritiesAdjustmentTax" order="1.0200" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureSecuritiesPurchasedUnderAgreementsToResell">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureSecuritiesSoldUnderAgreementsToRepurchase">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureAmountsOutstandingForLoansAndLeasesBySegmentAndClass">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LeasesReceivableCommercialLeaseFinancing" xlink:label="us-gaap_LeasesReceivableCommercialLeaseFinancing"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableAllowance" xlink:label="us-gaap_LoansAndLeasesReceivableAllowance"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableForeignNetOfDeferredIncome" xlink:label="us-gaap_LoansAndLeasesReceivableForeignNetOfDeferredIncome"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:label="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetReportedAmount" xlink:label="us-gaap_LoansAndLeasesReceivableNetReportedAmount"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableOther" xlink:label="us-gaap_LoansAndLeasesReceivableOther"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansAndLeasesReceivablePrivateClient" xlink:label="ntrs_LoansAndLeasesReceivablePrivateClient"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansAndLeasesReceivableResidentialRealEstate" xlink:label="ntrs_LoansAndLeasesReceivableResidentialRealEstate"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansReceivableCommercialFinancialAndAgricultural" xlink:label="us-gaap_LoansReceivableCommercialFinancialAndAgricultural"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansReceivableCommercialRealEstate" xlink:label="us-gaap_LoansReceivableCommercialRealEstate"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_LoansReceivableCommercialFinancialAndAgricultural" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_LoansReceivableCommercialRealEstate" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_LeasesReceivableCommercialLeaseFinancing" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_LoansAndLeasesReceivableForeignNetOfDeferredIncome" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="ntrs_LoansAndLeasesReceivableResidentialRealEstate" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="ntrs_LoansAndLeasesReceivablePrivateClient" order="1.0800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_LoansAndLeasesReceivableOther" order="1.0900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetReportedAmount" xlink:to="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetReportedAmount" xlink:to="us-gaap_LoansAndLeasesReceivableAllowance" order="1.0200" weight="-1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureLoansAndLeasesAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfNetInvestmentsInDirectFinanceAndLeverageLeases">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeases" xlink:label="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeases"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesDeferredIncome" xlink:label="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesDeferredIncome"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesInitialDirectCosts" xlink:label="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesInitialDirectCosts"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesMinimumPaymentsToBeReceived" xlink:label="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesMinimumPaymentsToBeReceived"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty" xlink:label="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LeasesReceivableCommercialLeaseFinancing" xlink:label="us-gaap_LeasesReceivableCommercialLeaseFinancing"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureDeferredIncome" xlink:label="us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureDeferredIncome"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureInvestmentInLeveragedLeasesNet" xlink:label="us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureInvestmentInLeveragedLeasesNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureRentalReceivablesNet" xlink:label="us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureRentalReceivablesNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureResidualValueOfLeasedAssets" xlink:label="us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureResidualValueOfLeasedAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeases" xlink:to="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesMinimumPaymentsToBeReceived" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeases" xlink:to="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeases" xlink:to="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesInitialDirectCosts" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeases" xlink:to="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesDeferredIncome" order="1.0400" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LeasesReceivableCommercialLeaseFinancing" xlink:to="us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeases" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LeasesReceivableCommercialLeaseFinancing" xlink:to="us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureInvestmentInLeveragedLeasesNet" order="1.0900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureInvestmentInLeveragedLeasesNet" xlink:to="us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureRentalReceivablesNet" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureInvestmentInLeveragedLeasesNet" xlink:to="us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureResidualValueOfLeasedAssets" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureInvestmentInLeveragedLeasesNet" xlink:to="us-gaap_LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureDeferredIncome" order="1.0800" weight="-1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureFutureMinimumLeasePaymentsToBeReceived">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureLoanAndLeaseSegmentAndClassBalancesSegregatedByBorrowerRatingsInto1To34To5And6To9WatchListCategories">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureBalancesAndDelinquencyStatusOfPerformingAndNonperformingLoansAndLeasesBySegmentAndClassAsWellAsTotalOtherRealEstateOwnedAndNonperformingAssetBalances">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue" xlink:label="us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue" xlink:label="us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentCurrent" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentCurrent"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue" xlink:label="us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:label="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_FinancingReceivableRecordedInvestmentCurrent" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue" order="1.0400" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureImpairedLoansBySegmentAndClass">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureNumberOfLoansAndLeasesModifiedInTDRsAndTotalRecordedInvestmentsAndUnpaidPrincipalBalances">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureNumberOfLoansAndLeasesModifiedInTroubledDebtRestructuringsWhichBecameNonperformingAsWellAsTotalRecordedInvestmentsAndUnpaidPrincipalBalances">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureChangesInAllowanceForCreditLossesBySegment">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AllowanceForLoanAndLeaseLossesAdjustmentsNet" xlink:label="us-gaap_AllowanceForLoanAndLeaseLossesAdjustmentsNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AllowanceForLoanAndLeaseLossesRecoveriesOfBadDebts" xlink:label="us-gaap_AllowanceForLoanAndLeaseLossesRecoveriesOfBadDebts"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs" xlink:label="us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableAllowance" xlink:label="us-gaap_LoansAndLeasesReceivableAllowance"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansAndLeasesReceivableAllowanceForLosses" xlink:label="ntrs_LoansAndLeasesReceivableAllowanceForLosses"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_UnfundedCommitmentsAndStandbyLettersOfCreditAllowance" xlink:label="ntrs_UnfundedCommitmentsAndStandbyLettersOfCreditAllowance"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AllowanceForLoanAndLeaseLossesAdjustmentsNet" xlink:to="us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs" order="1.0100" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AllowanceForLoanAndLeaseLossesAdjustmentsNet" xlink:to="us-gaap_AllowanceForLoanAndLeaseLossesRecoveriesOfBadDebts" order="1.0200" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_LoansAndLeasesReceivableAllowanceForLosses" xlink:to="us-gaap_LoansAndLeasesReceivableAllowance" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_LoansAndLeasesReceivableAllowanceForLosses" xlink:to="ntrs_UnfundedCommitmentsAndStandbyLettersOfCreditAllowance" order="1.0700" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureAllowancesForCreditLossesAndRecordedInvestmentsInLoansAndLeasesBySegment">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment" xlink:label="us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment" xlink:label="us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment" xlink:label="us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_FinancingReceivablesAllowanceForCreditLossesIndividuallyEvaluatedForImpairment" xlink:label="ntrs_FinancingReceivablesAllowanceForCreditLossesIndividuallyEvaluatedForImpairment"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableAllowance" xlink:label="us-gaap_LoansAndLeasesReceivableAllowance"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansAndLeasesReceivableAllowanceForLosses" xlink:label="ntrs_LoansAndLeasesReceivableAllowanceForLosses"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:label="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_UnfundedCommitmentsAndStandbyLettersOfCreditAllowance" xlink:label="ntrs_UnfundedCommitmentsAndStandbyLettersOfCreditAllowance"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableAllowance" xlink:to="ntrs_FinancingReceivablesAllowanceForCreditLossesIndividuallyEvaluatedForImpairment" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableAllowance" xlink:to="us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_LoansAndLeasesReceivableAllowanceForLosses" xlink:to="us-gaap_LoansAndLeasesReceivableAllowance" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_LoansAndLeasesReceivableAllowanceForLosses" xlink:to="ntrs_UnfundedCommitmentsAndStandbyLettersOfCreditAllowance" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:to="us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment" order="1.0200" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureConcentrationsOfCreditRiskAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureCommercialRealEstateLoanTypes">
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansReceivableCommercialConstructionAcquisitionAndDevelopment" xlink:label="ntrs_LoansReceivableCommercialConstructionAcquisitionAndDevelopment"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansReceivableCommercialRealEstate" xlink:label="us-gaap_LoansReceivableCommercialRealEstate"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansReceivableCommercialRealEstateCommercialMortgage" xlink:label="ntrs_LoansReceivableCommercialRealEstateCommercialMortgage"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansReceivableCommercialRealEstateCommercialMortgageApartmentsAndMultiFamily" xlink:label="ntrs_LoansReceivableCommercialRealEstateCommercialMortgageApartmentsAndMultiFamily"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansReceivableCommercialRealEstateCommercialMortgageIndustrialAndWarehouse" xlink:label="ntrs_LoansReceivableCommercialRealEstateCommercialMortgageIndustrialAndWarehouse"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansReceivableCommercialRealEstateCommercialMortgageOffice" xlink:label="ntrs_LoansReceivableCommercialRealEstateCommercialMortgageOffice"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansReceivableCommercialRealEstateCommercialMortgageOther" xlink:label="ntrs_LoansReceivableCommercialRealEstateCommercialMortgageOther"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansReceivableCommercialRealEstateCommercialMortgageRetail" xlink:label="ntrs_LoansReceivableCommercialRealEstateCommercialMortgageRetail"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansReceivableCommercialRealEstateOther" xlink:label="ntrs_LoansReceivableCommercialRealEstateOther"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoansReceivableCommercialRealEstateSingleFamilyInvestment" xlink:label="ntrs_LoansReceivableCommercialRealEstateSingleFamilyInvestment"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansReceivableCommercialRealEstate" xlink:to="ntrs_LoansReceivableCommercialRealEstateCommercialMortgage" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansReceivableCommercialRealEstate" xlink:to="ntrs_LoansReceivableCommercialConstructionAcquisitionAndDevelopment" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansReceivableCommercialRealEstate" xlink:to="ntrs_LoansReceivableCommercialRealEstateSingleFamilyInvestment" order="1.0800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LoansReceivableCommercialRealEstate" xlink:to="ntrs_LoansReceivableCommercialRealEstateOther" order="1.0900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_LoansReceivableCommercialRealEstateCommercialMortgage" xlink:to="ntrs_LoansReceivableCommercialRealEstateCommercialMortgageOffice" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_LoansReceivableCommercialRealEstateCommercialMortgage" xlink:to="ntrs_LoansReceivableCommercialRealEstateCommercialMortgageApartmentsAndMultiFamily" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_LoansReceivableCommercialRealEstateCommercialMortgage" xlink:to="ntrs_LoansReceivableCommercialRealEstateCommercialMortgageRetail" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_LoansReceivableCommercialRealEstateCommercialMortgage" xlink:to="ntrs_LoansReceivableCommercialRealEstateCommercialMortgageIndustrialAndWarehouse" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_LoansReceivableCommercialRealEstateCommercialMortgage" xlink:to="ntrs_LoansReceivableCommercialRealEstateCommercialMortgageOther" order="1.0500" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureBuildingsAndEquipment">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="us-gaap_PropertyPlantAndEquipmentGross"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentGross" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" order="1.0200" weight="-1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureBuildingsAndEquipmentAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureLeaseCommitmentsAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureFutureMinimumLeasePaymentsForNonCancelableOperatingLeases">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" order="1.0600" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureFutureMinimumLeasePaymentsForCapitalLeases">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDue"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments" xlink:label="us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsDue" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments" xlink:to="us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments" order="1.0800" weight="-1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureChangesInCarryingAmountsOfGoodwillByBusinessUnit">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureOtherIntangibleAssetsSubjectToAmortization">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="us-gaap_FiniteLivedIntangibleAssetsGross" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" order="1.0200" weight="-1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureGoodwillAndOtherIntangiblesAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfSeniorNotesOutstanding">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfLongTermDebtOutstanding">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CapitalLeaseObligations" xlink:label="us-gaap_CapitalLeaseObligations"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummary" xlink:label="us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummary"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebt" xlink:label="us-gaap_LongTermDebt"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SubordinatedDebt" xlink:label="us-gaap_SubordinatedDebt"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_SubordinatedDebt" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummary" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_CapitalLeaseObligations" order="1.0300" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfLongTermDebtOutstandingParenthetical">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfSeniorNotesOutstandingParenthetical">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureFloatingRateCapitalDebtAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfBookValuesOfOutstandingSubordinatedDebentures">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureStockholdersEquityAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureChangesInNumberOfSharesOfCommonStockOutstanding">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfAccumulatedOtherComprehensiveIncomeLoss">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureComputationsOfNetIncomePerCommonShare">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DividendsPreferredStock" xlink:label="us-gaap_DividendsPreferredStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_NetIncomeLossAllocatedToCommonStockholdersBasic" xlink:label="ntrs_NetIncomeLossAllocatedToCommonStockholdersBasic"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_UndistributedEarningsAllocatedToParticipatingSecurities" xlink:label="us-gaap_UndistributedEarningsAllocatedToParticipatingSecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_NetIncomeLossAllocatedToCommonStockholdersBasic" xlink:to="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_NetIncomeLossAllocatedToCommonStockholdersBasic" xlink:to="us-gaap_UndistributedEarningsAllocatedToParticipatingSecurities" order="1.0400" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="us-gaap_NetIncomeLoss" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="us-gaap_DividendsPreferredStock" order="1.0200" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" order="1.0600" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureNetIncomePerCommonShareAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfNetInterestIncome">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestAndDividendIncomeOperating" xlink:label="us-gaap_InterestAndDividendIncomeOperating"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestAndFeeIncomeLoansAndLeases" xlink:label="us-gaap_InterestAndFeeIncomeLoansAndLeases"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpense" xlink:label="us-gaap_InterestExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseDeposits" xlink:label="us-gaap_InterestExpenseDeposits"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseFederalFundsPurchased" xlink:label="us-gaap_InterestExpenseFederalFundsPurchased"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseJuniorSubordinatedDebentures" xlink:label="us-gaap_InterestExpenseJuniorSubordinatedDebentures"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_InterestExpenseOtherBorrowings" xlink:label="ntrs_InterestExpenseOtherBorrowings"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseOtherLongTermDebt" xlink:label="us-gaap_InterestExpenseOtherLongTermDebt"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase" xlink:label="us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_InterestExpenseSeniorNotes" xlink:label="ntrs_InterestExpenseSeniorNotes"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestIncomeDepositsWithFinancialInstitutions" xlink:label="us-gaap_InterestIncomeDepositsWithFinancialInstitutions"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_InterestIncomeFederalReserveDepositsAndOther" xlink:label="ntrs_InterestIncomeFederalReserveDepositsAndOther"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestIncomeSecuritiesTaxable" xlink:label="us-gaap_InterestIncomeSecuritiesTaxable"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestIncomeSecuritiesTaxExempt" xlink:label="us-gaap_InterestIncomeSecuritiesTaxExempt"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestAndDividendIncomeOperating" xlink:to="us-gaap_InterestAndFeeIncomeLoansAndLeases" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestAndDividendIncomeOperating" xlink:to="us-gaap_InterestIncomeSecuritiesTaxable" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestAndDividendIncomeOperating" xlink:to="us-gaap_InterestIncomeSecuritiesTaxExempt" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestAndDividendIncomeOperating" xlink:to="us-gaap_InterestIncomeDepositsWithFinancialInstitutions" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestAndDividendIncomeOperating" xlink:to="ntrs_InterestIncomeFederalReserveDepositsAndOther" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpenseDeposits" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpenseFederalFundsPurchased" order="1.0800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase" order="1.0900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestExpense" xlink:to="ntrs_InterestExpenseOtherBorrowings" order="1.1000" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestExpense" xlink:to="ntrs_InterestExpenseSeniorNotes" order="1.1100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpenseOtherLongTermDebt" order="1.1200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpenseJuniorSubordinatedDebentures" order="1.1300" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfOtherOperatingIncome">
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_BankingServiceFees" xlink:label="ntrs_BankingServiceFees"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_LoanServiceFees" xlink:label="ntrs_LoanServiceFees"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoninterestIncomeOther" xlink:label="us-gaap_NoninterestIncomeOther"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoninterestIncomeOtherOperatingIncome" xlink:label="us-gaap_NoninterestIncomeOtherOperatingIncome"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestIncomeOtherOperatingIncome" xlink:to="ntrs_LoanServiceFees" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestIncomeOtherOperatingIncome" xlink:to="ntrs_BankingServiceFees" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NoninterestIncomeOtherOperatingIncome" xlink:to="us-gaap_NoninterestIncomeOther" order="1.0300" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfOtherOperatingExpense">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="us-gaap_AmortizationOfIntangibleAssets"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FederalDepositInsuranceCorporationPremiumExpense" xlink:label="us-gaap_FederalDepositInsuranceCorporationPremiumExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_MarketingAndAdvertisingExpense" xlink:label="us-gaap_MarketingAndAdvertisingExpense"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_NoninterestExpenseOther" xlink:label="ntrs_NoninterestExpenseOther"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_NoninterestExpenseOtherSupportAgreementCharges" xlink:label="ntrs_NoninterestExpenseOtherSupportAgreementCharges"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherNoninterestExpense" xlink:label="us-gaap_OtherNoninterestExpense"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_StaffRelated" xlink:label="ntrs_StaffRelated"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherNoninterestExpense" xlink:to="us-gaap_MarketingAndAdvertisingExpense" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherNoninterestExpense" xlink:to="us-gaap_FederalDepositInsuranceCorporationPremiumExpense" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherNoninterestExpense" xlink:to="ntrs_StaffRelated" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherNoninterestExpense" xlink:to="us-gaap_AmortizationOfIntangibleAssets" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherNoninterestExpense" xlink:to="ntrs_NoninterestExpenseOtherSupportAgreementCharges" order="1.0500" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherNoninterestExpense" xlink:to="ntrs_NoninterestExpenseOther" order="1.0600" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureRestructuringAcquisitionAndIntegrationRelatedChargesAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureAmountsAndAssociatedExpenseCategoriesOfChargesRecorded">
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_EmployeeBenefits" xlink:label="ntrs_EmployeeBenefits"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_EquipmentAndSoftwareExpense" xlink:label="ntrs_EquipmentAndSoftwareExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OccupancyNet" xlink:label="us-gaap_OccupancyNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherNoninterestExpense" xlink:label="us-gaap_OtherNoninterestExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProfessionalFees" xlink:label="us-gaap_ProfessionalFees"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_RestructuringAcquisitionAndIntegrationCharges" xlink:label="ntrs_RestructuringAcquisitionAndIntegrationCharges"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_SalariesWagesAndIncentives" xlink:label="ntrs_SalariesWagesAndIncentives"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_RestructuringAcquisitionAndIntegrationCharges" xlink:to="ntrs_SalariesWagesAndIncentives" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_RestructuringAcquisitionAndIntegrationCharges" xlink:to="ntrs_EmployeeBenefits" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_RestructuringAcquisitionAndIntegrationCharges" xlink:to="us-gaap_ProfessionalFees" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_RestructuringAcquisitionAndIntegrationCharges" xlink:to="ntrs_EquipmentAndSoftwareExpense" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_RestructuringAcquisitionAndIntegrationCharges" xlink:to="us-gaap_OccupancyNet" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_RestructuringAcquisitionAndIntegrationCharges" xlink:to="us-gaap_OtherNoninterestExpense" order="1.0600" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureReconciliationOfTotalProvisionForIncomeTaxesWithAmountsComputedAtFederalTaxRateOf35">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential" xlink:label="us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_IncomeTaxReconciliationLeveragedLeaseAdjustments" xlink:label="ntrs_IncomeTaxReconciliationLeveragedLeaseAdjustments"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments" xlink:label="us-gaap_IncomeTaxReconciliationOtherAdjustments"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxExemptIncome" xlink:label="us-gaap_IncomeTaxReconciliationTaxExemptIncome"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxReconciliationTaxExemptIncome" order="1.0200" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="ntrs_IncomeTaxReconciliationLeveragedLeaseAdjustments" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxReconciliationOtherAdjustments" order="1.0600" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureIncomeTaxesAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureReconciliationOfBeginningAndEndingAmountOfUnrecognizedTaxBenefits">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureComponentsOfConsolidatedProvisionForIncomeTaxes">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="us-gaap_CurrentFederalTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CurrentForeignTaxExpenseBenefit" xlink:label="us-gaap_CurrentForeignTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="us-gaap_CurrentIncomeTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="us-gaap_CurrentStateAndLocalTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredFederalIncomeTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredForeignIncomeTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_TotalDeferredIncomeTaxExpenseBenefit" xlink:label="ntrs_TotalDeferredIncomeTaxExpenseBenefit"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:to="us-gaap_CurrentFederalTaxExpenseBenefit" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:to="us-gaap_CurrentStateAndLocalTaxExpenseBenefit" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:to="us-gaap_CurrentForeignTaxExpenseBenefit" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_CurrentIncomeTaxExpenseBenefit" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="ntrs_TotalDeferredIncomeTaxExpenseBenefit" order="1.0800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_TotalDeferredIncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredFederalIncomeTaxExpenseBenefit" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_TotalDeferredIncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_TotalDeferredIncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredForeignIncomeTaxExpenseBenefit" order="1.0700" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureTaxChargesBenefitsRecordedDirectlyToStockholdersEquity">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureDeferredTaxLiabilitiesAndAssets">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="us-gaap_DeferredTaxAssetsGross"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="us-gaap_DeferredTaxAssetsNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="us-gaap_DeferredTaxAssetsOther"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves" xlink:label="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_DeferredTaxAssetsVisaIndemnification" xlink:label="ntrs_DeferredTaxAssetsVisaIndemnification"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_DeferredTaxLiabilitiesCompensationAndBenefits" xlink:label="ntrs_DeferredTaxLiabilitiesCompensationAndBenefits"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxLiabilitiesDeferredExpense" xlink:label="us-gaap_DeferredTaxLiabilitiesDeferredExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware" xlink:label="us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_DeferredTaxLiabilitiesDepreciationAndAmortization" xlink:label="ntrs_DeferredTaxLiabilitiesDepreciationAndAmortization"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_DeferredTaxLiabilitiesGross" xlink:label="ntrs_DeferredTaxLiabilitiesGross"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxLiabilitiesLeasingArrangements" xlink:label="us-gaap_DeferredTaxLiabilitiesLeasingArrangements"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOther" xlink:label="us-gaap_DeferredTaxLiabilitiesOther"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxAssetsGross" xlink:to="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxAssetsGross" xlink:to="ntrs_DeferredTaxAssetsVisaIndemnification" order="1.0800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxAssetsGross" xlink:to="us-gaap_DeferredTaxAssetsOther" order="1.0900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxAssetsNet" xlink:to="us-gaap_DeferredTaxAssetsGross" order="1.1000" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DeferredTaxAssetsNet" xlink:to="us-gaap_DeferredTaxAssetsValuationAllowance" order="1.1100" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_DeferredTaxLiabilitiesGross" xlink:to="us-gaap_DeferredTaxLiabilitiesLeasingArrangements" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_DeferredTaxLiabilitiesGross" xlink:to="us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_DeferredTaxLiabilitiesGross" xlink:to="ntrs_DeferredTaxLiabilitiesDepreciationAndAmortization" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_DeferredTaxLiabilitiesGross" xlink:to="ntrs_DeferredTaxLiabilitiesCompensationAndBenefits" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_DeferredTaxLiabilitiesGross" xlink:to="us-gaap_DeferredTaxLiabilitiesDeferredExpense" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_DeferredTaxLiabilitiesGross" xlink:to="us-gaap_DeferredTaxLiabilitiesOther" order="1.0600" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureEmployeeBenefitsAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosurePlanStatusOfUSPlanNonUSPlansAndSupplementalPlan">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureAmountsIncludedInAccumulatedOtherComprehensiveIncome">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansTax" xlink:label="ntrs_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansTax"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" xlink:label="us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax" xlink:label="us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" xlink:label="us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax" xlink:to="us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax" xlink:to="ntrs_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansTax" order="1.0400" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" xlink:to="us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax" order="1.0100" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" xlink:to="us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" order="1.0200" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureNetPeriodicPensionExpenseOfUSPlanNonUSPlansAndSupplementalPlan">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="us-gaap_DefinedBenefitPlanInterestCost"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments" xlink:label="us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="us-gaap_DefinedBenefitPlanServiceCost"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanServiceCost" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanInterestCost" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" order="1.0300" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments" order="1.0400" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" order="1.0500" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" order="1.0600" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureChangeInBenefitObligation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureEstimatedFutureBenefitPayments">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureChangeInPlanAssets">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureFairValuesOfUSPensionPlanAssetsByMajorAssetCategoryAndTheirLevelWithinFairValueHierarchy">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureChangesInLevel3USPensionPlanAssets">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosurePostretirementHealthCarePlanStatus">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosurePostretirementHealthCareAmountsIncludedInAccumulatedOtherComprehensiveIncome">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosurePostretirementHealthCareNetPeriodicPostretirementBenefitExpense">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfTransitionObligationsAssets" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfTransitionObligationsAssets"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="us-gaap_DefinedBenefitPlanInterestCost"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="us-gaap_DefinedBenefitPlanServiceCost"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanServiceCost" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanInterestCost" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" order="1.0300" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanAmortizationOfTransitionObligationsAssets" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" order="1.0500" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosurePostretirementHealthCareChangeInAccumulatedPostretirementBenefitObligation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosurePostretirementHealthCareEstimatedFutureBenefitPayments">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureHealthCareCostTrendRateAssumptionEffects">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureCompensationExpenseForShareBasedPaymentArrangementsAndAssociatedTaxImpacts">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureShareBasedCompensationPlansAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureWeightedAverageAssumptionsUsedForOptionsGranted">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureInformationPertainingToStockOptionsGrantedVestedAndExercised">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureChangesInNonvestedStockOptions">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureStatusOfStockOptionsUnderPlanAnd1992Plan">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureStatusOfOutstandingStockAndStockUnitAwardsUnderPlanAnd1992Plan">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureSummaryOfNonvestedStockAndStockUnitAwards">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureCashBasedCompensationPlansAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureContingentLiabilitiesAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureDerivativeFinancialInstrumentsAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureNotionalAndFairValueAmountsOfClientrelatedAndTradingDerivativeFinancialInstruments">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureGainsAndLossesRecordedInConsolidatedStatementOfIncomeRelatedToClientRelatedAndTradingDerivativeFinancialInstruments">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureTypesAndClassificationsOfDerivativeInstrumentsDesignatedAsHedges">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureGainsAndLossesRecordedInConsolidatedStatementOfIncomeRelatedToFairValueHedges">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureCashFlowHedgeDerivativeGainsAndLossesRecognizedInAOCIAndTheAmountsReclassifiedToEarnings">
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_CashFlowHedgeGainLossReclassifiedToCompensationExpenseNet" xlink:label="ntrs_CashFlowHedgeGainLossReclassifiedToCompensationExpenseNet"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_CashFlowHedgeGainLossReclassifiedToEmployeeBenefitsNet" xlink:label="ntrs_CashFlowHedgeGainLossReclassifiedToEmployeeBenefitsNet"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_CashFlowHedgeGainLossReclassifiedToEquipmentAndSoftwareExpenseNet" xlink:label="ntrs_CashFlowHedgeGainLossReclassifiedToEquipmentAndSoftwareExpenseNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashFlowHedgeGainLossReclassifiedToInterestExpenseNet" xlink:label="us-gaap_CashFlowHedgeGainLossReclassifiedToInterestExpenseNet"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_CashFlowHedgeGainLossReclassifiedToInterestIncomeNet" xlink:label="ntrs_CashFlowHedgeGainLossReclassifiedToInterestIncomeNet"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_CashFlowHedgeGainLossReclassifiedToOccupancyExpenseNet" xlink:label="ntrs_CashFlowHedgeGainLossReclassifiedToOccupancyExpenseNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashFlowHedgeGainLossReclassifiedToOtherExpenseNet" xlink:label="us-gaap_CashFlowHedgeGainLossReclassifiedToOtherExpenseNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashFlowHedgeGainLossReclassifiedToOtherIncomeNet" xlink:label="us-gaap_CashFlowHedgeGainLossReclassifiedToOtherIncomeNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashFlowHedgeGainLossReclassifiedToRevenueNet" xlink:label="us-gaap_CashFlowHedgeGainLossReclassifiedToRevenueNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet" xlink:label="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet" xlink:to="us-gaap_CashFlowHedgeGainLossReclassifiedToRevenueNet" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet" xlink:to="us-gaap_CashFlowHedgeGainLossReclassifiedToOtherIncomeNet" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet" xlink:to="ntrs_CashFlowHedgeGainLossReclassifiedToInterestIncomeNet" order="1.0300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet" xlink:to="us-gaap_CashFlowHedgeGainLossReclassifiedToInterestExpenseNet" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet" xlink:to="ntrs_CashFlowHedgeGainLossReclassifiedToCompensationExpenseNet" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet" xlink:to="ntrs_CashFlowHedgeGainLossReclassifiedToEmployeeBenefitsNet" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet" xlink:to="ntrs_CashFlowHedgeGainLossReclassifiedToEquipmentAndSoftwareExpenseNet" order="1.0700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet" xlink:to="ntrs_CashFlowHedgeGainLossReclassifiedToOccupancyExpenseNet" order="1.0800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet" xlink:to="us-gaap_CashFlowHedgeGainLossReclassifiedToOtherExpenseNet" order="1.0900" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureNetInvestmentHedgeGainsAndLossesRecognizedInAOCI">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureTypesAndClassificationsOfRiskManagementDerivativeInstrumentsNotFormallyDesignatedAsHedgesIncludingNotionalAndFairValues">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureGainsAndLossesRecordedInConsolidatedStatementOfIncomeRelatedToDerivativeInstrumentsNotFormallyDesignatedAsHedges">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureContractualAmountsOfCommitmentsAndLettersOfCredit">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureContractualAmountsOfCommitmentsAndLettersOfCreditParenthetical">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureOffBalanceSheetFinancialInstrumentsAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureVariableInterestEntitiesAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosurePledgedAndRestrictedAssetsAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureRestrictionsOnSubsidiaryDividendsAndLoansOrAdvancesAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureEarningsContributionOfNorthernTrustsBusinessUnits">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestRevenueExpense" xlink:label="us-gaap_InterestRevenueExpense"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_RevenueIncludingFullyTaxableEquivalentAdjustment" xlink:label="ntrs_RevenueIncludingFullyTaxableEquivalentAdjustment"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_SegmentReportingInformationNoninterestIncomeOtherIncome" xlink:label="ntrs_SegmentReportingInformationNoninterestIncomeOtherIncome"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_TrustInvestmentAndOtherServicingFees" xlink:label="ntrs_TrustInvestmentAndOtherServicingFees"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_RevenueIncludingFullyTaxableEquivalentAdjustment" xlink:to="ntrs_TrustInvestmentAndOtherServicingFees" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_RevenueIncludingFullyTaxableEquivalentAdjustment" xlink:to="ntrs_SegmentReportingInformationNoninterestIncomeOtherIncome" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_RevenueIncludingFullyTaxableEquivalentAdjustment" xlink:to="us-gaap_InterestRevenueExpense" order="1.0300" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureEarningsContributionOfNorthernTrustsBusinessUnitsParenthetical">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureBusinessUnitsAndRelatedInformationAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureDistributionOfTotalAssetsAndOperatingPerformance">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureRegulatoryCapitalRequirementsAdditionalInformation">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureRiskBasedCapitalAmountsAndRatiosForNorthernTrustAndForEachOfItsUSSubsidiaryBanksWhoseNetIncomeFor2011Or2010Exceeded10OfTheConsolidatedTotal">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureCondensedBalanceSheet">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherLiabilities" xlink:label="us-gaap_OtherLiabilities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherLongTermDebt" xlink:label="us-gaap_OtherLongTermDebt"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_TrustPreferredSecurities" xlink:label="ntrs_TrustPreferredSecurities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_OtherLongTermDebt" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="ntrs_TrustPreferredSecurities" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_OtherLiabilities" order="1.0300" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureCondensedStatementOfIncome">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_IncomeLossFromContinuingOperationsBeforeMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="ntrs_IncomeLossFromContinuingOperationsBeforeMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpense" xlink:label="us-gaap_InterestExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="us-gaap_OperatingExpenses"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherNoninterestExpense" xlink:label="us-gaap_OtherNoninterestExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Revenues" xlink:label="us-gaap_Revenues"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="us-gaap_Revenues" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="us-gaap_OperatingExpenses" order="1.0400" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_IncomeLossFromContinuingOperationsBeforeMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" order="1.0500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ntrs_IncomeLossFromContinuingOperationsBeforeMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="us-gaap_IncomeTaxExpenseBenefit" order="1.0600" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_InterestExpense" order="1.0200" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_OtherNoninterestExpense" order="1.0300" weight="1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/DisclosureCondensedStatementOfCashFlows">
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_CapitalSupportAgreementPayments" xlink:label="ntrs_CapitalSupportAgreementPayments"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_ClientSupportRelatedCharges" xlink:label="ntrs_ClientSupportRelatedCharges"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_EquityInUndistributedEarningsLossesOfSubsidiaries" xlink:label="ntrs_EquityInUndistributedEarningsLossesOfSubsidiaries"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:label="us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpense"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/>
    <loc xlink:type="locator" xlink:href="ntrs-20111231.xsd#ntrs_PaymentsForAdvanceToWhollyOwnedSubsidiaries" xlink:label="ntrs_PaymentsForAdvanceToWhollyOwnedSubsidiaries"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock" xlink:label="us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForRepurchaseOfWarrants" xlink:label="us-gaap_PaymentsForRepurchaseOfWarrants"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="us-gaap_PaymentsOfDividendsCommonStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock" xlink:label="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries" xlink:label="us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecurities" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromPaymentsForInInterestBearingDepositsInBanks" xlink:label="us-gaap_ProceedsFromPaymentsForInInterestBearingDepositsInBanks"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" xlink:label="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="us-gaap_ProceedsFromStockOptionsExercised"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities" order="1.0800" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities" order="1.1500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities" order="1.2500" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromIssuanceOfLongTermDebt" order="1.1600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock" order="1.1700" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock" order="1.1800" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock" order="1.1900" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsForRepurchaseOfWarrants" order="1.2000" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsForRepurchaseOfCommonStock" order="1.2100" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsOfDividendsCommonStock" order="1.2200" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromStockOptionsExercised" order="1.2300" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" order="1.2400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_ProceedsFromPaymentsForInInterestBearingDepositsInBanks" order="1.0900" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsToAcquireAvailableForSaleSecurities" order="1.1000" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" order="1.1100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries" order="1.1200" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="ntrs_PaymentsForAdvanceToWhollyOwnedSubsidiaries" order="1.1300" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_PaymentsForProceedsFromOtherInvestingActivities" order="1.1400" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetIncomeLoss" order="1.0100" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="ntrs_EquityInUndistributedEarningsLossesOfSubsidiaries" order="1.0200" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInPrepaidExpense" order="1.0300" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="ntrs_ClientSupportRelatedCharges" order="1.0400" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="ntrs_CapitalSupportAgreementPayments" order="1.0500" weight="-1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" order="1.0600" weight="1.00" priority="2" use="optional"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" order="1.0700" weight="-1.00" priority="2" use="optional"/>
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsBasisOfPresentationAndSignificantAccountingPoliciesTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsBasisOfPresentationAndSignificantAccountingPoliciesTextBlockPolicies">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDescriptionOfNewAccountingPronouncementsNotYetAdopted">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsFairValueDisclosuresTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsFairValueDisclosuresTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsInvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsInvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRepurchaseAgreementsResaleAgreementsSecuritiesBorrowedAndSecuritiesLoanedDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRepurchaseAgreementsResaleAgreementsSecuritiesBorrowedAndSecuritiesLoanedDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsLoansNotesTradeAndOtherReceivablesDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsLoansNotesTradeAndOtherReceivablesDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsAllowanceForCreditLossesTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsAllowanceForCreditLossesTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsConcentrationRiskDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsConcentrationRiskDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsLeasesOfLesseeDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsLeasesOfLesseeDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsGoodwillAndIntangibleAssetsDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsGoodwillAndIntangibleAssetsDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDebtDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDebtDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsSubordinatedBorrowingsDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsSubordinatedBorrowingsDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsComprehensiveIncomeNoteTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsComprehensiveIncomeNoteTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsEarningsPerShareTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsEarningsPerShareTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsInterestIncomeAndInterestExpenseDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsInterestIncomeAndInterestExpenseDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsOtherOperatingIncomeTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsOtherOperatingIncomeTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsOtherOperatingExpensesTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsOtherOperatingExpensesTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsScheduleOfRestructuringAcquisitionAndIntegrationRelatedChargesTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsScheduleOfRestructuringAcquisitionAndIntegrationRelatedChargesTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsPensionAndOtherPostretirementBenefitsDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsPensionAndOtherPostretirementBenefitsDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsCashBasedCompensationPlansDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsLossContingencyDisclosures">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsScheduleOfFairValueOffBalanceSheetRisksTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsScheduleOfFairValueOffBalanceSheetRisksTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfVariableInterestEntitiesTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRestrictedAssetsDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRestrictionsOnDividendsLoansAndAdvancesTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsSegmentReportingDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsSegmentReportingDisclosureTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlockTables">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsCondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock">
  </calculationLink>
  <calculationLink xlink:type="extended" xlink:role="http://www.ntrs.com/taxonomy/role/NotesToFinancialStatementsCondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlockTables">
  </calculationLink>
</linkbase>
