content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001756801</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000106535</issuerCik>
        <issuerName>WEYERHAEUSER CO</issuerName>
        <secFileNumber>001-04825</secFileNumber>
        <issuerAddress>
          <com:street1>220 OCCIDENTAL AVENUE SOUTH</com:street1>
          <com:city>SEATTLE</com:city>
          <com:stateOrCountry>WA</com:stateOrCountry>
          <com:zipCode>98104</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>206-539-3000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>O'Rear Keith</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Merrill Lynch</name>
          <address>
            <com:street1>225 Liberty St</com:street1>
            <com:street2>Floor 37</com:street2>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10281</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>8588</noOfUnitsSold>
        <aggregateMarketValue>300636.33</aggregateMarketValue>
        <noOfUnitsOutstanding>730001000</noOfUnitsOutstanding>
        <approxSaleDate>12/28/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>02/09/2018</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>WEYERHAEUSER CO</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>868</amountOfSecuritiesAcquired>
        <paymentDate>02/09/2018</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>02/12/2018</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>WEYERHAEUSER CO</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>494</amountOfSecuritiesAcquired>
        <paymentDate>02/12/2018</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>02/08/2019</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>WEYERHAEUSER CO</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>429</amountOfSecuritiesAcquired>
        <paymentDate>02/08/2019</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>02/09/2019</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>WEYERHAEUSER CO</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>908</amountOfSecuritiesAcquired>
        <paymentDate>02/09/2019</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>02/12/2019</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>WEYERHAEUSER CO</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>291</amountOfSecuritiesAcquired>
        <paymentDate>02/12/2019</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>02/07/2020</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>WEYERHAEUSER CO</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>5267</amountOfSecuritiesAcquired>
        <paymentDate>02/07/2020</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>02/08/2020</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>WEYERHAEUSER CO</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>331</amountOfSecuritiesAcquired>
        <paymentDate>02/08/2020</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>12/28/2023</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>08/03/2023</planAdoptionDate>
        </planAdoptionDates>
        <signature>Keith O'Rear</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 6544}]
text: 144
  0001756801
  XXXXXXXX
  LIVE
  0000106535
  WEYERHAEUSER CO
  001-04825
  220 OCCIDENTAL AVENUE SOUTH
  SEATTLE
  WA
  98104
  206-539-3000
  O'Rear Keith
  Officer
  Common Stock
  Merrill Lynch
  225 Liberty St
  Floor 37
  New York
  NY
  10281
  8588
  300636.33
  730001000
  12/28/2023
  NYSE
  Common Stock
  02/09/2018
  Vesting of restricted stock unit award
  WEYERHAEUSER CO
  N
  868
  02/09/2018
  Granted as part of issuer equity compensation plan
  Common Stock
  02/12/2018
  Vesting of restricted stock unit award
  WEYERHAEUSER CO
  N
  494
  02/12/2018
  Granted as part of issuer equity compensation plan
  Common Stock
  02/08/2019
  Vesting of restricted stock unit award
  WEYERHAEUSER CO
  N
  429
  02/08/2019
  Granted as part of issuer equity compensation plan
  Common Stock
  02/09/2019
  Vesting of restricted stock unit award
  WEYERHAEUSER CO
  N
  908
  02/09/2019
  Granted as part of issuer equity compensation plan
  Common Stock
  02/12/2019
  Vesting of restricted stock unit award
  WEYERHAEUSER CO
  N
  291
  02/12/2019
  Granted as part of issuer equity compensation plan
  Common Stock
  02/07/2020
  Vesting of restricted stock unit award
  WEYERHAEUSER CO
  N
  5267
  02/07/2020
  Granted as part of issuer equity compensation plan
  Common Stock
  02/08/2020
  Vesting of restricted stock unit award
  WEYERHAEUSER CO
  N
  331
  02/08/2020
  Granted as part of issuer equity compensation plan
  Y
  12/28/2023
  08/03/2023
  Keith O'Rear