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  <xs:element id="cinf_PaymentsToAcquireProceedsFromSaleAndCollectionOfFinanceReceivables" abstract="false" name="PaymentsToAcquireProceedsFromSaleAndCollectionOfFinanceReceivables" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_SeniorDebenturesSixPointNineTwoPercentDueTwentyTwentyEightMember" abstract="true" name="SeniorDebenturesSixPointNineTwoPercentDueTwentyTwentyEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_ReclassificationfromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax" abstract="false" name="ReclassificationfromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ConsolidatedPropertyAndCasualtyInsuranceMember" abstract="true" name="ConsolidatedPropertyAndCasualtyInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_ScheduleofDeferredPolicyAcquisitionCostsLineItems" abstract="true" name="ScheduleofDeferredPolicyAcquisitionCostsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_HomeOwnerSegmentMember" abstract="true" name="HomeOwnerSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_PurchaseOfTreasurySharesNonCash" abstract="false" name="PurchaseOfTreasurySharesNonCash" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherRealizedInvestmentGainsLossesNet" abstract="false" name="OtherRealizedInvestmentGainsLossesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ASU201812TransitionDateEffectOfRemovalOfShadowAdjustments" abstract="false" name="ASU201812TransitionDateEffectOfRemovalOfShadowAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_IncreaseDecreaseinPremiumsandReinsurancereceivable" abstract="false" name="IncreaseDecreaseinPremiumsandReinsurancereceivable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_AccumulatedNetUnrealizedGainLossOnDeferredCostsReservesAndOtherMember" abstract="true" name="AccumulatedNetUnrealizedGainLossOnDeferredCostsReservesAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_MSPUnderwritingLimitedMember" abstract="true" name="MSPUnderwritingLimitedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_OtherCommercialLinesMember" abstract="true" name="OtherCommercialLinesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_AccumulatedOtherComprehensiveIncomeAbstract" abstract="true" name="AccumulatedOtherComprehensiveIncomeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_LifeDeferredPolicyAcquisitionCostsByProductTableTextBlock" abstract="false" name="LifeDeferredPolicyAcquisitionCostsByProductTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherTax" abstract="false" name="OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_NumberOfSecuritiesContinuousUnrealizedLossPositionandBelow70PercentofAmortizedCost" abstract="false" name="NumberOfSecuritiesContinuousUnrealizedLossPositionandBelow70PercentofAmortizedCost" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cinf_AccumulatedOtherComprehensiveIncomeLossTax" abstract="false" name="AccumulatedOtherComprehensiveIncomeLossTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAverage" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAverage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cinf_IncreaseDecreaseInOtherComprehensiveIncomeLossBeforeTax" abstract="false" name="IncreaseDecreaseInOtherComprehensiveIncomeLossBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_WorkersCompensationMember" abstract="true" name="WorkersCompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_SeparatedAccountLiabilityIncreaseDecreaseFromInterestCreditedBeforePolicyCharges" abstract="false" name="SeparatedAccountLiabilityIncreaseDecreaseFromInterestCreditedBeforePolicyCharges" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ASU201812TransitionDateEffectOfRemeasurementOfFuturePolicyBenefitsAtMarketValueDiscountRates" abstract="false" name="ASU201812TransitionDateEffectOfRemeasurementOfFuturePolicyBenefitsAtMarketValueDiscountRates" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentBeforeTax" abstract="false" name="OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_DefinedBenefitPlanNonServiceCostBenefit" abstract="false" name="DefinedBenefitPlanNonServiceCostBenefit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherNetOfTax" abstract="false" name="OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_InvestmentIncomeOtherLongTermInvestments" abstract="false" name="InvestmentIncomeOtherLongTermInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAverage" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAverage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cinf_LifePolicyReservesMember" abstract="true" name="LifePolicyReservesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessLineItems" abstract="true" name="PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_SeniorDebentures69PercentDue2028Member" abstract="true" name="SeniorDebentures69PercentDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_DiscountRateAssumptionChangesIncludedInImpactOfFlooringAtCohortLevel" abstract="false" name="DiscountRateAssumptionChangesIncludedInImpactOfFlooringAtCohortLevel" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherBeforeTax" abstract="false" name="OtherComprehensiveIncomeLossLifePolicyReservesReinsuranceRecoverableAndOtherBeforeTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_EffectOfASU201812AdoptionOnOpeningAccumulatedOtherComprehensiveIncome" abstract="false" name="EffectOfASU201812AdoptionOnOpeningAccumulatedOtherComprehensiveIncome" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetActuarialLossAndPriorServiceCostArisingDuringPeriodTax" abstract="false" name="OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetActuarialLossAndPriorServiceCostArisingDuringPeriodTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_EffectOfASU201812AdoptionOnOpeningRetainedEarnings" abstract="false" name="EffectOfASU201812AdoptionOnOpeningRetainedEarnings" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_LifeInsuranceAssumedAndCededBusinessTableTableTextBlock" abstract="false" name="LifeInsuranceAssumedAndCededBusinessTableTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cinf_CommercialAutoSegmentMember" abstract="true" name="CommercialAutoSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_CommercialLinesInsuranceMember" abstract="true" name="CommercialLinesInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_IncreaseDecreaseInOtherComprehensiveIncomeLossTax" abstract="false" name="IncreaseDecreaseInOtherComprehensiveIncomeLossTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAverage" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAverage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cinf_PersonalLinesInsuranceMember" abstract="true" name="PersonalLinesInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_PropertyCasualtyInsuranceAssumedAndCededBusinessTableTextBlock" abstract="false" name="PropertyCasualtyInsuranceAssumedAndCededBusinessTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cinf_Largestequityholdingstototalequityportfolio" abstract="false" name="Largestequityholdingstototalequityportfolio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesAverage" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesAverage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cinf_ExcessandSurplusLinesInsuranceMember" abstract="true" name="ExcessandSurplusLinesInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_WeightedAverageInterestRateForLifePolicyProductsTableTextBlock" abstract="false" name="WeightedAverageInterestRateForLifePolicyProductsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="cinf_ChangeInLifePolicyReservesReinsuranceRecoverableAndOtherTax" abstract="false" name="ChangeInLifePolicyReservesReinsuranceRecoverableAndOtherTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_CommercialPropertySegmentMember" abstract="true" name="CommercialPropertySegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_IncreaseDecreaseofdeferredtaxassets" abstract="false" name="IncreaseDecreaseofdeferredtaxassets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_Largestequityholdingstototalportfolio" abstract="false" name="Largestequityholdingstototalportfolio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="cinf_InvestmentcontractreservesMember" abstract="true" name="InvestmentcontractreservesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="cinf_NumberOfIndustriesOperatingIn" abstract="false" name="NumberOfIndustriesOperatingIn" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cinf_AdditionalLiabilityLongDurationInsuranceShadowReserveAdjustments" abstract="false" name="AdditionalLiabilityLongDurationInsuranceShadowReserveAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
</XBRL>