SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                            SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934
                                (Amendment No. 1)

Filed by the Registrant: [X]
Filed by a party other than the Registrant [ ]

Check the appropriate box:
[ ]      Preliminary Proxy Statement
[ ]      Confidential,  for  Use  of  the  Commission Only (as permitted by Rule
         14a-6(e)(2))
[ ]      Definitive Proxy Statement
[X]      Definitive Additional Materials
[ ]      Soliciting Material Pursuant to Section 240.14a-11(c)
         or Section 240.14a-12

                              Sonoma Valley Bancorp
                (Name of Registrant as Specified In Its Charter)

               ---------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[X]  No fee required
[ ]  Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11

         1)  Title of each class of securities to which transaction applies:
             _______________________________
         2)  Aggregate number of securities to which transaction applies:
             _______________________________
         3)  Per  unit  price  or other underlying value of transaction computed
             pursuant to Exchange Act Rule 0-11  (set  forth the amount on which
             the filing fee is calculated and state how it was determined):
             __________________________
         4)  Proposed maximum aggregate value of transaction: ______________
         5)  Total fee paid: ___________________

[ ]  Fee paid previously with preliminary materials.

[ ]  Check box if any part of the fee is offset as provided by Exchange Act Rule
     0-11(a)(2) and identify the filing  for which the offsetting fee  was  paid
     previously. Identify the previous filing by registration  statement number,
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         1)  Amount Previously Paid: ________________________________
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         3)  Filing Party: __________________________________________
         4)  Date Filed: ___________________________________________





                              SONOMA VALLEY BANCORP
                         ANNUAL MEETING OF SHAREHOLDERS
                             WEDNESDAY, MAY 14, 2003

To the Shareholders of Sonoma Valley Bancorp:

     Sonoma  Valley  Bancorp  wishes  to  clarify  that the  Annual  Meeting  of
Shareholders will be held on Wednesday,  May 14, 2003, at 6:00 p.m., at Ramekins
Culinary School, 450 West Spain Street, Sonoma, California 95476. Unfortunately,
some  of  the  information   contained  in  the  Proxy  Statement  we  sent  you
inadvertently  referred to  inconsistent  dates for the meeting.  We urge you to
read  the  Proxy  Statement  and if you  need an  additional  copy of the  Proxy
Statement or proxy card please call us at (707) 935-3200.

                                      Sincerely,


                                      /S/ SUZANNE BRANGHAM
                                      Suzanne Brangham,
                                      Secretary