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        <filer>
          <filerCredentials>
            <cik>0001561350</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
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      <issuerInfo>
        <issuerCik>0000354647</issuerCik>
        <issuerName>CVB FINANCIAL CORP</issuerName>
        <secFileNumber>000-10140</secFileNumber>
        <issuerAddress>
          <com:street1>701 N HAVEN AVE STE 300</com:street1>
          <com:city>ONTARIO</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>91764</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>9099804030</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Del Guercio Stephen A</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>245 Summer Street</com:street1>
            <com:city>Boston</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02110</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>8289</noOfUnitsSold>
        <aggregateMarketValue>199184.67</aggregateMarketValue>
        <noOfUnitsOutstanding>139677614</noOfUnitsOutstanding>
        <approxSaleDate>11/25/2024</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/17/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>3606</amountOfSecuritiesAcquired>
        <paymentDate>03/17/2022</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/25/2021</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>4683</amountOfSecuritiesAcquired>
        <paymentDate>03/25/2021</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>11/25/2024</noticeDate>
        <signature>/s/ Heather Foxworth as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Del Guercio Stephen A</signature>
      </noticeSignature>
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text: 144
  0001561350
  XXXXXXXX
  LIVE
  0000354647
  CVB FINANCIAL CORP
  000-10140
  701 N HAVEN AVE STE 300
  ONTARIO
  CA
  91764
  9099804030
  Del Guercio Stephen A
  Director
  Common
  Fidelity Brokerage Services LLC
  245 Summer Street
  Boston
  MA
  02110
  8289
  199184.67
  139677614
  11/25/2024
  NASDAQ
  Common
  03/17/2022
  Stock Award
  Issuer
  N
  3606
  03/17/2022
  Compensation
  Common
  03/25/2021
  Stock Award
  Issuer
  N
  4683
  03/25/2021
  Compensation
  Y
  11/25/2024
  /s/ Heather Foxworth as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Del Guercio Stephen A