<?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>0001605809</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001596532</issuerCik>
      <issuerName>Arista Networks, Inc.</issuerName>
      <secFileNumber>001-36468</secFileNumber>
      <issuerAddress>
        <com:street1>5453 GREAT AMERICA PARKWAY</com:street1>
        <com:city>SANTA CLARA</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>95054</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>408-547-5500</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Ullal Jayshree</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>245 Summer Street</com:street1>
          <com:city>Boston</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02110</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>573509</noOfUnitsSold>
      <aggregateMarketValue>119364084.06</aggregateMarketValue>
      <noOfUnitsOutstanding>1261224648</noOfUnitsOutstanding>
      <approxSaleDate>08/05/2026</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>09/22/2008</acquiredDate>
      <natureOfAcquisitionTransaction>Stock Options exercise</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>399401</amountOfSecuritiesAcquired>
      <paymentDate>09/22/2008</paymentDate>
      <natureOfPayment>Wire</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>12/31/2013</acquiredDate>
      <natureOfAcquisitionTransaction>Stock Options exercise</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>174108</amountOfSecuritiesAcquired>
      <paymentDate>12/31/2013</paymentDate>
      <natureOfPayment>Wire</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jayshree Ullal C/O Arista Networks, Inc.</name>
        <address>
          <com:street1>5453 GREAT AMERICA PARKWAY,</com:street1>
          <com:city>Santa Clara</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>95054</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>05/26/2026</saleDate>
      <amountOfSecuritiesSold>13809</amountOfSecuritiesSold>
      <grossProceeds>2141003.98</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jayshree Ullal C/O Arista Networks, Inc.</name>
        <address>
          <com:street1>5453 GREAT AMERICA PARKWAY</com:street1>
          <com:city>Santa Clara</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>95054</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>07/09/2026</saleDate>
      <amountOfSecuritiesSold>242422</amountOfSecuritiesSold>
      <grossProceeds>45616262.39</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jayshree Ullal C/O Arista Networks, Inc.</name>
        <address>
          <com:street1>5453 GREAT AMERICA PARKWAY,</com:street1>
          <com:city>Santa Clara</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>95054</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>07/10/2026</saleDate>
      <amountOfSecuritiesSold>234578</amountOfSecuritiesSold>
      <grossProceeds>43907277.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Jayshree Ullal C/O Arista Networks, Inc.</name>
        <address>
          <com:street1>5453 GREAT AMERICA PARKWAY</com:street1>
          <com:city>Santa Clara</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>95054</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>08/05/2026</saleDate>
      <amountOfSecuritiesSold>1099495</amountOfSecuritiesSold>
      <grossProceeds>221239724.20</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>82,570 Sold from the Tarini Ullal Trust
82,570 sold from the Adeeti Ullal Trust
399,401 sold from the 2000 Ullal Family Trust
4,484 sold from the The Ishan Nagpal Trust
4,484 sold from the The Shriya Nagpal Trust</remarks>
    <noticeSignature>
      <noticeDate>08/12/2026</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>11/14/2025</planAdoptionDate>
      </planAdoptionDates>
      <signature>Audrey Skillern, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jayshree Ullal</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
