<?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>0002039256</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001101239</issuerCik>
      <issuerName>EQUINIX INC</issuerName>
      <secFileNumber>001-40205</secFileNumber>
      <issuerAddress>
        <com:street1>ONE LAGOON DRIVE</com:street1>
        <com:city>REDWOOD CITY</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>94065</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>(650) 598-6000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Pletcher Kurt</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Morgan Stanley Smith Barney LLC Executive Services</name>
        <address>
          <com:street1>1 NEW YORK PLAZA, 8TH FLOOR</com:street1>
          <com:city>NEW YORK</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10004</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>127</noOfUnitsSold>
      <aggregateMarketValue>111467.90</aggregateMarketValue>
      <noOfUnitsOutstanding>97300000</noOfUnitsOutstanding>
      <approxSaleDate>05/07/2025</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>01/15/2024</acquiredDate>
      <natureOfAcquisitionTransaction>RESTRICTED STOCK</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>51</amountOfSecuritiesAcquired>
      <paymentDate>01/15/2024</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>03/01/2024</acquiredDate>
      <natureOfAcquisitionTransaction>RESTRICTED STOCK</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>76</amountOfSecuritiesAcquired>
      <paymentDate>03/01/2024</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>KURT E PLETCHER</name>
        <address>
          <com:street1>ONE LAGOON DRIVE</com:street1>
          <com:city>REDWOOD CITY</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94065</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>RESTRICTED STOCK</securitiesClassTitle>
      <saleDate>03/13/2025</saleDate>
      <amountOfSecuritiesSold>451</amountOfSecuritiesSold>
      <grossProceeds>379971.26</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>KURT E PLETCHER</name>
        <address>
          <com:street1>ONE LAGOON DRIVE,</com:street1>
          <com:city>REDWOOD CITY</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94065</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>RESTRICTED STOCK</securitiesClassTitle>
      <saleDate>03/04/2025</saleDate>
      <amountOfSecuritiesSold>116</amountOfSecuritiesSold>
      <grossProceeds>104959.57</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>KURT E PLETCHER</name>
        <address>
          <com:street1>ONE LAGOON DRIVE,,</com:street1>
          <com:city>REDWOOD CITY</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94065</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>PERFORMANCE SHARES</securitiesClassTitle>
      <saleDate>02/19/2025</saleDate>
      <amountOfSecuritiesSold>441</amountOfSecuritiesSold>
      <grossProceeds>410571.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>KURT E PLETCHER</name>
        <address>
          <com:street1>ONE LAGOON DRIVE</com:street1>
          <com:city>REDWOOD CITY</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94065</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>RESTRICTED STOCK</securitiesClassTitle>
      <saleDate>02/18/2025</saleDate>
      <amountOfSecuritiesSold>215</amountOfSecuritiesSold>
      <grossProceeds>199891.50</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/07/2025</noticeDate>
      <signature>/s/ Kurt Pletcher</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
