content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
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      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001307991</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000313927</issuerCik>
        <issuerName>CHURCH &amp; DWIGHT CO INC /DE/</issuerName>
        <secFileNumber>001-10585</secFileNumber>
        <issuerAddress>
          <com:street1>500 CHARLES EWING BOULEVARD</com:street1>
          <com:city>EWING</com:city>
          <com:stateOrCountry>NJ</com:stateOrCountry>
          <com:zipCode>08628</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>609-806-1200</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Saligram Ravichandra Krishnamurty</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Mesirow</name>
          <address>
            <com:street1>353 N Clark ST</com:street1>
            <com:city>Chicago</com:city>
            <com:stateOrCountry>IL</com:stateOrCountry>
            <com:zipCode>60654</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>10000</noOfUnitsSold>
        <aggregateMarketValue>1061000.00</aggregateMarketValue>
        <noOfUnitsOutstanding>244997535</noOfUnitsOutstanding>
        <approxSaleDate>12/16/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>12/01/2014</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>9</amountOfSecuritiesAcquired>
        <paymentDate>12/01/2014</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/02/2015</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>23</amountOfSecuritiesAcquired>
        <paymentDate>03/02/2015</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>06/01/2015</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>24</amountOfSecuritiesAcquired>
        <paymentDate>06/01/2015</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>09/01/2015</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>23</amountOfSecuritiesAcquired>
        <paymentDate>09/01/2015</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>06/01/2016</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>22</amountOfSecuritiesAcquired>
        <paymentDate>06/01/2016</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>12/12/2008</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>628</amountOfSecuritiesAcquired>
        <paymentDate>12/12/2008</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/31/2008</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1553</amountOfSecuritiesAcquired>
        <paymentDate>03/31/2008</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>06/30/2008</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1456</amountOfSecuritiesAcquired>
        <paymentDate>06/30/2008</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>09/28/2008</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1064</amountOfSecuritiesAcquired>
        <paymentDate>09/28/2008</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>12/12/2008</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1124</amountOfSecuritiesAcquired>
        <paymentDate>12/12/2008</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>08/08/2016</acquiredDate>
        <natureOfAcquisitionTransaction>Stock award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>4074</amountOfSecuritiesAcquired>
        <paymentDate>08/08/2016</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>Sales occurring in the Saligram Family Trust</remarks>
      <noticeSignature>
        <noticeDate>12/16/2024</noticeDate>
        <signature>Jason Coleman as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Ravichandra Saligram</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 8133}]
text: 144
  0001307991
  XXXXXXXX
  LIVE
  0000313927
  CHURCH & DWIGHT CO INC /DE/
  001-10585
  500 CHARLES EWING BOULEVARD
  EWING
  NJ
  08628
  609-806-1200
  Saligram Ravichandra Krishnamurty
  Director
  Common
  Mesirow
  353 N Clark ST
  Chicago
  IL
  60654
  10000
  1061000.00
  244997535
  12/16/2024
  NYSE
  Common
  12/01/2014
  Stock Award
  Issuer
  N
  9
  12/01/2014
  Compensation
  Common
  03/02/2015
  Stock Award
  Issuer
  N
  23
  03/02/2015
  Compensation
  Common
  06/01/2015
  Stock Award
  Issuer
  N
  24
  06/01/2015
  Compensation
  Common
  09/01/2015
  Stock Award
  Issuer
  N
  23
  09/01/2015
  Compensation
  Common
  06/01/2016
  Stock Award
  Issuer
  N
  22
  06/01/2016
  Compensation
  Common
  12/12/2008
  Stock Award
  Issuer
  N
  628
  12/12/2008
  Compensation
  Common
  03/31/2008
  Stock Award
  Issuer
  N
  1553
  03/31/2008
  Compensation
  Common
  06/30/2008
  Stock Award
  Issuer
  N
  1456
  06/30/2008
  Compensation
  Common
  09/28/2008
  Stock Award
  Issuer
  N
  1064
  09/28/2008
  Compensation
  Common
  12/12/2008
  Stock Award
  Issuer
  N
  1124
  12/12/2008
  Compensation
  Common
  08/08/2016
  Stock award
  Issuer
  N
  4074
  08/08/2016
  Compensation
  Y
  Sales occurring in the Saligram Family Trust
  12/16/2024
  Jason Coleman as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Ravichandra Saligram