Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated February 26, 2004 relating to the consolidated financial statements of Greater Bay Bancorp, which appears in Greater Bay Bancorp’s Annual Report on Form 10-K for the year ended December 31, 2003.

/s/PricewaterhouseCoopers LLP

San Francisco, California

June 30, 2004