Bank of Commerce (BOCH) 8-K Bank of Commerce Holdings™ announces 1st Quarter Cash Dividend

Exhibit 99.1

For immediate release:

Bank of Commerce Holdings™ announces 1^st Quarter Cash Dividend

REDDING, California, March 17, 2009/ PR Newswire—Patrick J. Moty,President & CEOof Bank of Commerce Holdings (NASDAQ:BOCH), a $725 million financial services holding company, and parent company of Redding Bank of Commerce™, Roseville Bank of Commerce™, and Bank of Commerce Mortgage™ today announced a cash dividend of $0.06 per share for the first quarter of 2009.

The $0.06 per share quarterly cash dividend will be paid to shareholders of record as of March 31, 2009, payable on April 10, 2009. The dividend has a yield of 5.33%.

BOCH is a NASDAQ National Market listed stock. Please contact your local investment advisor for purchases and sales. Investment firms making a market in BOCH stock are:

Howe Barnes Hoefer & Arnett Investment Inc. /
John T. Cavender
555 Market Street
San Francisco, CA (800) 346-5544

Raymond James Financial/ Geoff Ball
1805 Hilltop Drive, Suite 106
Redding, CA (800) 926-5040

Wachovia Securities/ Ken Myers, Rick Hansen
10466 Brunswick Road
Grass Valley, CA (888) 383-3112

Contact information:

Linda J. Miles, Chief Financial Officer 530-722-3955