<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM GREATER BAY
BANCORP'S FILING ON FORM 8-K DATED JULY 1, 1999 AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000

                                                  
<PERIOD-TYPE>                   YEAR                    YEAR
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1997
<PERIOD-START>                             JAN-01-1998             JAN-01-1997
<PERIOD-END>                               DEC-31-1998             DEC-31-1997
<CASH>                                          69,583                  64,631
<INT-BEARING-DEPOSITS>                               0                       0
<FED-FUNDS-SOLD>                                62,800                  82,500
<TRADING-ASSETS>                                     0                       0
<INVESTMENTS-HELD-FOR-SALE>                    257,258                 167,519
<INVESTMENTS-CARRYING>                          94,599                  58,943
<INVESTMENTS-MARKET>                            94,890                  59,609
<LOANS>                                      1,092,603                 819,607
<ALLOWANCE>                                    (23,379)                (18,032)
<TOTAL-ASSETS>                               1,738,189               1,339,750
<DEPOSITS>                                   1,478,947               1,178,574
<SHORT-TERM>                                         0                       0
<LIABILITIES-OTHER>                             99,201                  49,648
<LONG-TERM>                                     53,000                  23,000
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                        62,179                  57,005
<OTHER-SE>                                      44,862                  31,523
<TOTAL-LIABILITIES-AND-EQUITY>               1,738,189               1,339,750
<INTEREST-LOAN>                                 93,915                  78,278
<INTEREST-INVEST>                               20,075                  10,323
<INTEREST-OTHER>                                10,808                   9,660
<INTEREST-TOTAL>                               124,798                  98,261
<INTEREST-DEPOSIT>                              43,004                  33,565
<INTEREST-EXPENSE>                              51,180                  37,012
<INTEREST-INCOME-NET>                           73,618                  61,249
<LOAN-LOSSES>                                    6,235                   7,026
<SECURITIES-GAINS>                                 374                      (5)
<EXPENSE-OTHER>                                 49,098                  42,125
<INCOME-PRETAX>                                 28,005                  21,156
<INCOME-PRE-EXTRAORDINARY>                      28,005                  21,156
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    18,943                  13,424
<EPS-BASIC>                                       1.74                    1.29
<EPS-DILUTED>                                     1.63                    1.19
<YIELD-ACTUAL>                                    5.10                    5.67
<LOANS-NON>                                      2,003                   3,344
<LOANS-PAST>                                         0                     158
<LOANS-TROUBLED>                                     0                       0
<LOANS-PROBLEM>                                      0                       0
<ALLOWANCE-OPEN>                                18,032                  11,629
<CHARGE-OFFS>                                   (1,496)                 (2,074)
<RECOVERIES>                                       425                     100
<ALLOWANCE-CLOSE>                               23,379                  18,032
<ALLOWANCE-DOMESTIC>                            23,379                  18,032
<ALLOWANCE-FOREIGN>                                  0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0