Exhibit 11


                        Greater Bay Bancorp Form 10-Q
               Statements Re Computation of Earnings Per Share



                                                                  Three Months Ended March 31,
(Dollars and shares in thousands, except per share amounts)        1998                 1997
- ---------------------------------------------------------------------------------------------- 
                                                                               
BASIC EARNINGS PER SHARE:
Income available to common shareholders                          $    3,646          $    2,546  
Weighted average common shares outstanding                        8,107,046           7,853,488 
                                                                 -------------------------------                
                                                                                                
Basic earnings per share                                         $     0.45          $     0.32 
                                                                 ===============================                
DILUTED EARNINGS PER SHARE:                                                                     
Income available to common shareholders                          $    3,646          $    2,546 
Weighted average common shares outstanding                        8,107,046           7,853,488 
Effect of dilutive securities                                       898,304             545,440 
                                                                 -------------------------------                
Weighted average common and common equivalent shares                                            
 outstanding                                                      9,005,350           8,398,928 
                                                                 -------------------------------                

Diluted earnings per share                                       $     0.40          $     0.30  
                                                                 ===============================                


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