EXHIBIT 32.2


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 FINANCIAL 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 June 30, 2005, I, Lee-Ann Cimino,  Chief Financial
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 June 30, 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 Quarterly Report on Form 10-Q of North Bay
Bancorp for the quarter ended June 30, 2005,  fairly  presents,  in all material
respects,  the  financial  condition  and  results  of  operations  of North Bay
Bancorp.


Dated:  August 11, 2005        /s/ Lee-Ann Cimino
                               --------------------------------------------
                               Lee-Ann Cimino
                               Senior Vice President and Chief Financial Officer
                               (Principal Financial Officer)