<?xml version="1.0"?>
<!-- - EDGAR Ease Plus 1.0                                   07/25/03  TT    -->
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
   <periodOfReport>2003-11-26</periodOfReport>
   <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000072911</issuerCik>
        <issuerName>NORTEL NETWORKS CORP</issuerName>
        <issuerTradingSymbol>NT</issuerTradingSymbol>
   </issuer>
   <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001232507</rptOwnerCik>
            <rptOwnerName>SCHILLING STEVEN LEO</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O NORTEL NETWORKS CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>8200 DIXIE ROAD, SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>BRAMPTON,</rptOwnerCity>
            <rptOwnerState>A6</rptOwnerState>
            <rptOwnerZipCode>L6T 5P6</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
         <isDirector>0</isDirector>
         <isOfficer>1</isOfficer>
         <isTenPercentOwner>0</isTenPercentOwner>
         <isOther>0</isOther>
         <officerTitle>President, Enterprise Accounts</officerTitle>
      </reportingOwnerRelationship>
   </reportingOwner>
 <nonDerivativeTable>
   <nonDerivativeTransaction>
      <securityTitle>
         <value>Common Shares</value>
      </securityTitle>
      <transactionDate>
         <value>2003-11-26</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>S</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>12000</value>
         </transactionShares>
         <transactionPricePerShare>
           <value>4.45</value>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>D</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>120149</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
   <nonDerivativeHolding>
      <securityTitle>
         <value>Common Shares</value>
      </securityTitle>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>8250</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>I</value>
         </directOrIndirectOwnership>
         <natureOfOwnership>
            <value>Held by spouse, Mary Schilling</value>
            <footnoteId id="F1"/>
         </natureOfOwnership>
      </ownershipNature>
   </nonDerivativeHolding>
 </nonDerivativeTable>
 <derivativeTable>
   <derivativeHolding>
      <securityTitle>
         <value>Investment Fund Units</value>
            <footnoteId id="F2"/>
      </securityTitle>
      <conversionOrExercisePrice>
            <footnoteId id="F2"/>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F2"/>
      </exerciseDate>
      <expirationDate>
            <footnoteId id="F2"/>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>146283.25</value>
            <footnoteId id="F2"/>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>495224.01</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeHolding>
   <derivativeHolding>
      <securityTitle>
         <value>01/24/95 Grant of Options</value>
            <footnoteId id="F3"/>
            <footnoteId id="F4"/>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>50.08</value>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F6"/>
      </exerciseDate>
      <expirationDate>
         <value>2005-01-23</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>120000</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>120000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeHolding>
   <derivativeHolding>
      <securityTitle>
         <value>01/29/98 Grant of Options</value>
            <footnoteId id="F3"/>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>11.29</value>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F6"/>
      </exerciseDate>
      <expirationDate>
         <value>2008-01-28</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>24000</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>24000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeHolding>
   <derivativeHolding>
      <securityTitle>
         <value>07/23/98 Grant of Options</value>
            <footnoteId id="F3"/>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>14.54</value>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F6"/>
      </exerciseDate>
      <expirationDate>
         <value>2008-07-22</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>60000</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>60000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeHolding>
   <derivativeHolding>
      <securityTitle>
         <value>07/23/98 Grant of Options</value>
            <footnoteId id="F3"/>
            <footnoteId id="F4"/>
      </securityTitle>
      <conversionOrExercisePrice>
            <footnoteId id="F4"/>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F4"/>
      </exerciseDate>
      <expirationDate>
         <value>2008-07-22</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>60000</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>60000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeHolding>
   <derivativeHolding>
      <securityTitle>
         <value>01/28/99 Grant of Options</value>
            <footnoteId id="F3"/>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>15.5325</value>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F6"/>
      </exerciseDate>
      <expirationDate>
         <value>2009-01-27</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>93334</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>93334</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeHolding>
   <derivativeHolding>
      <securityTitle>
         <value>07/29/99 Grant of Options</value>
            <footnoteId id="F3"/>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>21.9375</value>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F6"/>
      </exerciseDate>
      <expirationDate>
         <value>2009-07-28</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>60000</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>60000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeHolding>
   <derivativeHolding>
      <securityTitle>
         <value>01/27/00 Grant of Options</value>
            <footnoteId id="F3"/>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>49.61</value>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F6"/>
      </exerciseDate>
      <expirationDate>
         <value>2010-01-26</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>84000</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>84000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeHolding>
   <derivativeHolding>
      <securityTitle>
         <value>06/09/00 Grant of Options</value>
            <footnoteId id="F3"/>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>59.41</value>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F6"/>
      </exerciseDate>
      <expirationDate>
         <value>2010-06-08</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>50000</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>50000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeHolding>
   <derivativeHolding>
      <securityTitle>
         <value>01/25/01 Grant of Options</value>
            <footnoteId id="F5"/>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>38.26</value>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F7"/>
      </exerciseDate>
      <expirationDate>
         <value>2011-01-24</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>75000</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>75000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeHolding>
   <derivativeHolding>
      <securityTitle>
         <value>02/28/02 Grant of Options</value>
            <footnoteId id="F3"/>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>5.15</value>
      </conversionOrExercisePrice>
      <exerciseDate>
            <footnoteId id="F8"/>
      </exerciseDate>
      <expirationDate>
         <value>2012-02-27</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Shares</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>350000</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>350000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeHolding>
 </derivativeTable>
   <footnotes>
      <footnote id="F1"> These shares are held by a member of Mr. Schilling's immediate family residing in his household.  Mr. Schilling claims beneficial ownership of these shares.</footnote>

      <footnote id="F2"> 495,224.01 company stock fund units are held in the participant's account as a result of the participant's contributions, vested
company contributions and/or investment earnings thereon invested  in  the company stock fund (the &quot;U.S.Stock Fund&quot;) pursuant to
the Nortel Networks Long-Term Investment Plan (the &quot;U.S.Investment Plan&quot;), as of November 25,2003. The Stock  Fund invests
primarily in Nortel Networks Corporation (&quot;NNC&quot;) common shares.As at November 25,2003,the participant's company stock fund units represent
approximately 146,283.25 common shares of NNC.The U.S.Investment  Plan is administered as a unitized  fund by Hewitt Associates LLC and the
number of shares represented by each unit fluctuates on a daily basis.</footnote>

      <footnote id="F3"> The reported options were granted pursuant to the Nortel Networks Corporation 1986 Stock Option Plan As Amended and Restated (the &quot;1986 Stock Option Plan&quot;).</footnote>

      <footnote id="F4"> These replacement options were granted pursuant to the Key Contributor Program under the 1986 Stock Option Plan. Under the terms
of Key Contributor Program,a Participant is granted concurrently an equal number of initial options and replacement options.
The replacement options expire ten years from the date of grant and have an exercise   price   equal  to the market value (as  defined
in the 1986 Stock Option Plan) of common shares on  the date the initial options are fully exercised, provided that in no event
will the exercise price be less than the market value (as defined in the 1986 Stock Option Plan) on the date of grant.Subject
to certain holding requirements with respect to shares received from the exercise of the initial options,the replacement
options are generally exercisable commencing 36 months from  the date all of the initial options are fully exercised.</footnote>

      <footnote id="F5"> The reported options were granted pursuant to the Nortel Networks Corporation 2000 Stock Option Plan.</footnote>

      <footnote id="F6"> The reported options are currently vested.</footnote>

      <footnote id="F7"> The reported options are currently vested as to 50,000 NNC common shares and will vest as to the remaining 25,000 NNC common shares on January 25, 2004.</footnote>

      <footnote id="F8"> The reported options are currently vested as to 116,666 NNC common shares and will vest as to 116,667 NNC common shares on February 28, 2004 and on February 28, 2005.</footnote>
   </footnotes>
   <ownerSignature>
      <signatureName>K.E. McCarthy, Attorney for Steven L. Schilling</signatureName>
      <signatureDate>2003-12-01</signatureDate>
   </ownerSignature>
</ownershipDocument>

