EXHIBIT 32.1


The following certification  accompanies North Bay Bancorp's Quarterly Report on
Form 10-Q and is not filed as provided in SEC Release Nos. 33-8212, 34-47551 and
IC 25967, dated March 21, 2003.


                  CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
                       PURSUANT TO 18 U.S.C. SECTION 1350


In connection with the  accompanying  Quarterly Report on Form 10-Q of North Bay
Bancorp for the quarter  ended March 31, 2004, I, Terry L.  Robinson,  President
and Chief Executive Officer of North Bay Bancorp,  hereby certify pursuant to 18
U.S.C.  Section 1350, as adopted  pursuant to Section 906 of the  Sarbanes-Oxley
Act of 2002 that:

(1)  such  Quarterly  Report on Form 10-Q of North Bay  Bancorp  for the quarter
     ended March 31, 2004, fully complies with the requirements of section 13(a)
     or 15(d) of the Securities Exchange Act of 1934; and

(2)  the  information  contained in such Quarterly  Report on Form 10-Q of North
     Bay Bancorp for the quarter ended March 31, 2004,  fairly presents,  in all
     material  respects,  the  financial  condition and results of operations of
     North Bay Bancorp.


Dated:    May 13, 2004                    /s/ Terry L. Robinson
                                          --------------------------------------
                                          TERRY L. ROBINSON
                                          President and Chief Executive Officer



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