EXHIBIT 32.1


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

The following certification  accompanies the issuer's Annual Report on Form 10-K
and is not filed, as provided in Release 33-8212. 34-47551 dated March 21, 2003.




                                  EXHIBIT 32.1


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


In  connection  with the  accompanying  Annual  Report on Form 10-K of North Bay
Bancorp for the year ended  December 31, 2005, 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 2003 that:


(1)  Such  Annual  Report on Form 10-K of North Bay  Bancorp  for the year ended
     December 31, 2005, 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 Annual Report on Form 10-K of North Bay
     Bancorp for the year ended  December  31,  2005,  fairly  presents,  in all
     material  respects,  the  financial  condition and results of operations of
     North Bay Bancorp.


Dated:  March 15, 2006

/s/ Terry L. Robinson
---------------------
TERRY L. ROBINSON
President and Chief Executive Officer
(Principal Executive Officer)