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>0001343531</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000707549</issuerCik>
        <issuerName>LAM RESEARCH CORP</issuerName>
        <secFileNumber>000-12933</secFileNumber>
        <issuerAddress>
          <com:street1>4650 CUSHING BLVD</com:street1>
          <com:city>FREMONT</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94538</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>5106590200</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>LORD PATRICK J</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>900 Salem Street</com:street1>
            <com:city>Smithfield</com:city>
            <com:stateOrCountry>RI</com:stateOrCountry>
            <com:zipCode>02917</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>60</noOfUnitsSold>
        <aggregateMarketValue>55292.40</aggregateMarketValue>
        <noOfUnitsOutstanding>131103000</noOfUnitsOutstanding>
        <approxSaleDate>04/29/2024</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>04/28/2023</acquiredDate>
        <natureOfAcquisitionTransaction>ESPP Purchase</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>60</amountOfSecuritiesAcquired>
        <paymentDate>04/28/2023</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Patrick J. Lord</name>
          <address>
            <com:street1>4650 Cushing Parkway</com:street1>
            <com:city>Fremont</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>94538</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>03/11/2024</saleDate>
        <amountOfSecuritiesSold>8247</amountOfSecuritiesSold>
        <grossProceeds>7652009.25</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>04/29/2024</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>10/27/2023</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Patrick J. Lord</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001343531
  XXXXXXXX
  LIVE
  0000707549
  LAM RESEARCH CORP
  000-12933
  4650 CUSHING BLVD
  FREMONT
  CA
  94538
  5106590200
  LORD PATRICK J
  Officer
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  60
  55292.40
  131103000
  04/29/2024
  NASDAQ
  Common
  04/28/2023
  ESPP Purchase
  Issuer
  N
  60
  04/28/2023
  Cash
  N
  Patrick J. Lord
  4650 Cushing Parkway
  Fremont
  CA
  94538
  Common
  03/11/2024
  8247
  7652009.25
  04/29/2024
  10/27/2023
  /s/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Patrick J. Lord