Exhibit 12

Greater Bay Bancorp

Statements re Computation of Ratios of Earnings to Fixed Charges

	For the Years Ended December 31,
	2005		2004		2003		2002		2001
Income before income taxes	$	156,350	$	152,372	$	149,120	$	196,327	$	106,284
Fixed charges:
Interest expense		123,573		90,876		109,838		160,555		199,793
Interest factor of rental expense		6,988		7,040		6,633		6,081		3,733
Fixed charges		130,561		97,916		116,471		166,636		203,526
Less: interest expense on deposits		78,078		53,465		57,684		82,747		132,655
Net fixed charges		52,483		44,451		58,787		83,889		70,871
Earnings, excluding interest on deposits from fixed charges	$	208,833	$	196,882	$	207,808	$	280,216	$	177,155
Ratio of earnings, excluding interest on deposits, to net fixed charges(1)		3.98 x		4.43 x		3.53 x		3.34 x		2.50 x
Earnings, including interest on deposits in fixed charges	$	286,911	$	250,287	$	265,491	$	362,963	$	309,810
Ratio of earnings, including interest on deposits, to fixed charges(2)		2.20 x		2.56 x		2.28 x		2.18 x		1.52 x

⁽¹⁾ Forthe purposes of computing the ratio of earnings, excluding interest on deposits, to net fixed charges, earnings represent income before income taxes plus net fixed charges. Net fixed charges include interest expense, other than interest on deposits, and that portion of rental expense, generally one third, deemed representative of the interest factor.

⁽²⁾ Forthe purposes of computing the ratio of earnings, including interest on deposits, to fixed charges, earnings represent income before income taxes plus fixed charges. Fixed charges include interest expense and that portion of rental expense, generally one third, deemed representative of the interest factor.