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>0001343600</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>ARCHER TIMOTHY</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
          <relationshipToIssuer>Director</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>10524</noOfUnitsSold>
        <aggregateMarketValue>7703568.00</aggregateMarketValue>
        <noOfUnitsOutstanding>131792000</noOfUnitsOutstanding>
        <approxSaleDate>01/03/2024</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>01/03/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Option Granted 03/01/2018</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>10524</amountOfSecuritiesAcquired>
        <paymentDate>01/03/2024</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Timothy Archer</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>12/11/2023</saleDate>
        <amountOfSecuritiesSold>8500</amountOfSecuritiesSold>
        <grossProceeds>6037040.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>01/03/2024</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>08/09/2023</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ Courtney Broxterman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Timothy Archer</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001343600
  XXXXXXXX
  LIVE
  0000707549
  LAM RESEARCH CORP
  000-12933
  4650 CUSHING BLVD
  FREMONT
  CA
  94538
  5106590200
  ARCHER TIMOTHY
  Officer
  Director
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  10524
  7703568.00
  131792000
  01/03/2024
  NASDAQ
  Common
  01/03/2024
  Option Granted 03/01/2018
  Issuer
  N
  10524
  01/03/2024
  Cash
  N
  Timothy Archer
  4650 Cushing Parkway
  Fremont
  CA
  94538
  Common
  12/11/2023
  8500
  6037040.00
  01/03/2024
  08/09/2023
  /s/ Courtney Broxterman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Timothy Archer