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  <xsd:element id="ipg_Averageamountborrowedundercommercialpaperduringtheperiod" name="Averageamountborrowedundercommercialpaperduringtheperiod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ipg_AwardVestingPeriod" name="AwardVestingPeriod" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_BuildingsUsefulLife" name="BuildingsUsefulLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_CMGMember" name="CMGMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_CapitalizedInternalUseSoftwareUsefulLife" name="CapitalizedInternalUseSoftwareUsefulLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_CashAwardbyCompensationArrangementMaximumAwardValuePerEmployee" name="CashAwardbyCompensationArrangementMaximumAwardValuePerEmployee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ipg_CashAwardsGrantedDuringPeriodTargetValue" name="CashAwardsGrantedDuringPeriodTargetValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ipg_CashDebtPoolingArrangementsAmountNetted" name="CashDebtPoolingArrangementsAmountNetted" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_CashPaidForCurrentAndPriorYearsAcquisitionsTableTextBlock" name="CashPaidForCurrentAndPriorYearsAcquisitionsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_CashPaidforAcquisitionsAbstract" name="CashPaidforAcquisitionsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_CashSettledAwardsMember" name="CashSettledAwardsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_Cashpoolingguarantees" name="Cashpoolingguarantees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_Changeinoperatingleaserightofuseassetandleaseliabilities" name="Changeinoperatingleaserightofuseassetandleaseliabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ChangesInRedemptionValueOfRedeemableNoncontrollingInterestsAbstract" name="ChangesInRedemptionValueOfRedeemableNoncontrollingInterestsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_ChangesInTemporaryEquity" name="ChangesInTemporaryEquity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ChangesinAccumulatedComprehensiveLossnetoftaxAbstract" name="ChangesinAccumulatedComprehensiveLossnetoftaxAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_Commercialpaperborrowingcapacity" name="Commercialpaperborrowingcapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_Commercialpaperweightedaverageinterestrateovertime" name="Commercialpaperweightedaverageinterestrateovertime" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_Commercialpaperweightedaveragematuritydaysoutstanding" name="Commercialpaperweightedaveragematuritydaysoutstanding" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_CommittedCreditFacilityMember" name="CommittedCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_CommonStockSharesIssuedMember" name="CommonStockSharesIssuedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ContingentAcquisitionObligationsAxis" name="ContingentAcquisitionObligationsAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ContingentAcquisitionObligationsDomain" name="ContingentAcquisitionObligationsDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ContingentAcquisitionObligationsTable" name="ContingentAcquisitionObligationsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_CreditFacilityAbstract" name="CreditFacilityAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_DebtIssuanceFaceAmount" name="DebtIssuanceFaceAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ipg_DebtTransactionsAbstract" name="DebtTransactionsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_DeferredAcquisitionPaymentsMember" name="DeferredAcquisitionPaymentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_DeferredTaxAssetsInterest" name="DeferredTaxAssetsInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ipg_DeferredTaxLiabilitiesROU" name="DeferredTaxLiabilitiesROU" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ipg_DefinedContributionPlanDomain" name="DefinedContributionPlanDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_DefinedContributionPlansAxis" name="DefinedContributionPlansAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_DefinedContributionPlansParticipantForfeituresMember" name="DefinedContributionPlansParticipantForfeituresMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_DeiAbstract" name="DeiAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_DepreciationandAmortizationExcludingAcquiredIntangibles" name="DepreciationandAmortizationExcludingAcquiredIntangibles" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_DiscretionaryCompanyContributionMember" name="DiscretionaryCompanyContributionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_DividendsPaidForStockSettledAwards" name="DividendsPaidForStockSettledAwards" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ipg_DomesticPensionPlanDiscountRate" name="DomesticPensionPlanDiscountRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ipg_EBITA" name="EBITA" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ipg_FairValueOfPensionPlanAssetsTableTextBlock" name="FairValueOfPensionPlanAssetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_ForeignPensionPlanDiscountRate" name="ForeignPensionPlanDiscountRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ipg_GoodwillandintangibleassetsAbstract" name="GoodwillandintangibleassetsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_GuaranteeObligationsCurrentCarryingValueCreditfacilities" name="GuaranteeObligationsCurrentCarryingValueCreditfacilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_GuaranteeObligationsCurrentCarryingValueLeases" name="GuaranteeObligationsCurrentCarryingValueLeases" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ipg_IANMember" name="IANMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_IncentiveCompensationExpenseNonShareBased" name="IncentiveCompensationExpenseNonShareBased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ipg_IncentiveCompensationPlanInitiationYear" name="IncentiveCompensationPlanInitiationYear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:gYearItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_IncomeLossfromContinuingOperationsbeforeEquityMethodInvestmentsandNoncontrollingInterest" name="IncomeLossfromContinuingOperationsbeforeEquityMethodInvestmentsandNoncontrollingInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ipg_InterestCreditingRateUsedToCalculateNetPeriodicCost" name="InterestCreditingRateUsedToCalculateNetPeriodicCost" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_InterestCreditingRateUsedtoCalculateObligation" name="InterestCreditingRateUsedtoCalculateObligation" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ipg_InvestmentFundMember" name="InvestmentFundMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_InvestmentsmeasuredatnetassetvalueMember" name="InvestmentsmeasuredatnetassetvalueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_LeaseholdImprovementsUsefulLife" name="LeaseholdImprovementsUsefulLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_LeverageRatioAcquisitionPriceThreshold" name="LeverageRatioAcquisitionPriceThreshold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ipg_LeverageRatioMaximum" name="LeverageRatioMaximum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_LiabilitydriveninvestmentsMember" name="LiabilitydriveninvestmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_LineofCreditFacilityAvailableCapacityIncreaseAmount" name="LineofCreditFacilityAvailableCapacityIncreaseAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_LineofCreditFacilityLimitsonLettersofCredit" name="LineofCreditFacilityLimitsonLettersofCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_MarginForBaseRateAdvances" name="MarginForBaseRateAdvances" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ipg_MarginForEurocurrencyRateAdvances" name="MarginForEurocurrencyRateAdvances" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ipg_MaximumLeaseTermforLeasesThatHaveNotYetCommenced" name="MaximumLeaseTermforLeasesThatHaveNotYetCommenced" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_MaximumRemainingLeaseTerm" name="MaximumRemainingLeaseTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_MinimumLeaseTermforLeasesThatHaveNotYetCommenced" name="MinimumLeaseTermforLeasesThatHaveNotYetCommenced" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_MinimumRemainingLeaseTerm" name="MinimumRemainingLeaseTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_NetimpactoftheTaxAct" name="NetimpactoftheTaxAct" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ipg_NoncontrollingInterestRelatedToRedeemableNoncontrollingInterests" name="NoncontrollingInterestRelatedToRedeemableNoncontrollingInterests" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ipg_NumberOfParticipantsDomesticPensionPlan" name="NumberOfParticipantsDomesticPensionPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_NumberOfParticipantsPostretirementBenefitPlan" name="NumberOfParticipantsPostretirementBenefitPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_NumberOfReportingUnitsForPurposesOfAnnualGoodwillImpairmentTest" name="NumberOfReportingUnitsForPurposesOfAnnualGoodwillImpairmentTest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="ipg_OfficeAndRelatedExpensesCurrent" name="OfficeAndRelatedExpensesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeaseLiabilityLeasesNotCommenced" name="OperatingLeaseLiabilityLeasesNotCommenced" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsCurrent" name="OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsDueInFiveYears" name="OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsDueInFiveYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsDueInFourYears" name="OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsDueInFourYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsDueInThreeYears" name="OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsDueInThreeYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsDueInTwoYears" name="OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsDueInTwoYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsDueThereafter" name="OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsDueThereafter" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsDueGrossRent" name="OperatingLeasesFutureMinimumPaymentsDueGrossRent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsDueGrossRentCurrent" name="OperatingLeasesFutureMinimumPaymentsDueGrossRentCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsGrossRentDueInFiveYears" name="OperatingLeasesFutureMinimumPaymentsGrossRentDueInFiveYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsGrossRentDueInFourYears" name="OperatingLeasesFutureMinimumPaymentsGrossRentDueInFourYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsGrossRentDueInThreeYears" name="OperatingLeasesFutureMinimumPaymentsGrossRentDueInThreeYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsGrossRentDueInTwoYears" name="OperatingLeasesFutureMinimumPaymentsGrossRentDueInTwoYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ipg_OperatingLeasesFutureMinimumPaymentsGrossRentDueThereafter" name="OperatingLeasesFutureMinimumPaymentsGrossRentDueThereafter" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ipg_OtherCompensationMember" name="OtherCompensationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_OtherComprehensiveIncomeLossAbstract" name="OtherComprehensiveIncomeLossAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansOtherBeforeTax" name="OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansOtherBeforeTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_OtherPlanAssetsMember" name="OtherPlanAssetsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_PayablesPolicyPolicyTextBlock" name="PayablesPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_PaymentstoAcquireBusinessesGrossCurrentYearAcquisitions" name="PaymentstoAcquireBusinessesGrossCurrentYearAcquisitions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ipg_PaymenttoAcquireBusinessesGrossPriorYearAcquisitions" name="PaymenttoAcquireBusinessesGrossPriorYearAcquisitions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_PerformanceBasedAwardsMember" name="PerformanceBasedAwardsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_ProceedsfromStockOptionsExercisedincludingTaxesWithheld" name="ProceedsfromStockOptionsExercisedincludingTaxesWithheld" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_PropertyandEquipmentAbstract" name="PropertyandEquipmentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_RecoveryofDirectCostsExpenses" name="RecoveryofDirectCostsExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_RedeemableAtNoncontrollingEquityOwnersDiscretionMember" name="RedeemableAtNoncontrollingEquityOwnersDiscretionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_RedeemableNoncontrollingInterestsAndCallOptionsWithAffiliatesMember" name="RedeemableNoncontrollingInterestsAndCallOptionsWithAffiliatesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_RedeemableNoncontrollingInterestsPeriodIncrease" name="RedeemableNoncontrollingInterestsPeriodIncrease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ipg_RedeemableNoncontrollingInterestsRedemptionValueAdjustments" name="RedeemableNoncontrollingInterestsRedemptionValueAdjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ReportableSegmentsTwoMember" name="ReportableSegmentsTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_RevenueAbstract" name="RevenueAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_Reversalofvaluationallowance" name="Reversalofvaluationallowance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ipg_ScheduleOfFinancialCovenantsInCreditAgreementTableTextBlock" name="ScheduleOfFinancialCovenantsInCreditAgreementTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_ScheduleOfUnrecognizedTaxBenefitsActivityTableTextBlock" name="ScheduleOfUnrecognizedTaxBenefitsActivityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ScheduleofLineofCreditFacilityAbstract" name="ScheduleofLineofCreditFacilityAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ScheduleofNewDebtIssuanceLineItems" name="ScheduleofNewDebtIssuanceLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ScheduleofNewDebtIssuanceTable" name="ScheduleofNewDebtIssuanceTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_SegmentDomesticDomain" name="SegmentDomesticDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_SegmentGeographicalGroupsOfCountriesGroupFiveMember" name="SegmentGeographicalGroupsOfCountriesGroupFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_SegmentInternationalDomain" name="SegmentInternationalDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumAwardValuePerEmployee" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumAwardValuePerEmployee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ShareRepurchaseProgramAbstract" name="ShareRepurchaseProgramAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_ShareRepurchaseProgramTableTextBlock" name="ShareRepurchaseProgramTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ShareRepurchaseProgramThreeMemberDomain" name="ShareRepurchaseProgramThreeMemberDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_StockSettledAwardsMember" name="StockSettledAwardsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_Stockbasedawardsexpectedtobesettledincash" name="Stockbasedawardsexpectedtobesettledincash" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_SummaryofOtherIntangibleAssetsAbstract" name="SummaryofOtherIntangibleAssetsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_SummaryofStockOptionsAssumptionsAbstract" name="SummaryofStockOptionsAssumptionsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_SupplementaryDataAbstract" name="SupplementaryDataAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_TaxWithheldonStockOptionsReceived" name="TaxWithheldonStockOptionsReceived" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ipg_TotalCashPaymentstoAcquireBusinessesincludingOperatingExpenses" name="TotalCashPaymentstoAcquireBusinessesincludingOperatingExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_TotalContingentAcquisitionPaymentsMember" name="TotalContingentAcquisitionPaymentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_TotalReclassificationfromAOCI" name="TotalReclassificationfromAOCI" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_TotalplanassetssubjecttolevelingMember" name="TotalplanassetssubjecttolevelingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_UncommittedCreditFacilityMember" name="UncommittedCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_UnrealizedGainsOnAvailableForSaleSecuritiesAbstract" name="UnrealizedGainsOnAvailableForSaleSecuritiesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_UnrecognizedLossesTransitionObligationAndPriorServiceCostAbstract" name="UnrecognizedLossesTransitionObligationAndPriorServiceCostAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_UnsecuredDebt3.50NoteMember" name="UnsecuredDebt3.50NoteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_UnsecuredDebt3.75NoteDuein2021Member" name="UnsecuredDebt3.75NoteDuein2021Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_UnsecuredDebt3.75NoteDuein2023Member" name="UnsecuredDebt3.75NoteDuein2023Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_UnsecuredDebt4.00NoteMember" name="UnsecuredDebt4.00NoteMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_UnsecuredDebt4.20NotesMember" name="UnsecuredDebt4.20NotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_UnsecuredDebt4.65NotesMember" name="UnsecuredDebt4.65NotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_UnsecuredDebt5.40NotesMember" name="UnsecuredDebt5.40NotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ipg_ValuationAllowanceDeferredTaxAssetChangeInAmountChargedReversedToCostsAndExpenses" name="ValuationAllowanceDeferredTaxAssetChangeInAmountChargedReversedToCostsAndExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ipg_ValuationAllowanceDeferredTaxAssetChangeInAmountChargedReversedToGrossTaxAssetsAndOtherAccounts" name="ValuationAllowanceDeferredTaxAssetChangeInAmountChargedReversedToGrossTaxAssetsAndOtherAccounts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ipg_ValuationAllowanceDeferredTaxAssetChangeinAmountChargedReversedtoForeigncurrencytranslation" name="ValuationAllowanceDeferredTaxAssetChangeinAmountChargedReversedtoForeigncurrencytranslation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_ValuationandQualifyingAccountsAllowanceforUncollectibleAccountsAbstract" name="ValuationandQualifyingAccountsAllowanceforUncollectibleAccountsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ipg_WeightedaveragenumberofsharesoutstandingbasicanddilutedAbstract" name="WeightedaveragenumberofsharesoutstandingbasicanddilutedAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
</xsd:schema>
