[ARTICLE] 6
[CIK] 0000874835
[NAME] GREENWICH STREET SERIES FUND
[SERIES]
   [NUMBER] 8
   [NAME] MONEY MARKET PORTFOLIO
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   6-MOS
[FISCAL-YEAR-END]                          DEC-31-1998
[PERIOD-END]                               JUN-30-1998
[INVESTMENTS-AT-COST]                        4,410,222
[INVESTMENTS-AT-VALUE]                       4,410,222
[RECEIVABLES]                                   12,896
[ASSETS-OTHER]                                       0
[OTHER-ITEMS-ASSETS]                               520
[TOTAL-ASSETS]                               4,423,638
[PAYABLE-FOR-SECURITIES]                             0
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                       15,839
[TOTAL-LIABILITIES]                             15,839
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                     4,407,799
[SHARES-COMMON-STOCK]                        4,407,799
[SHARES-COMMON-PRIOR]                                0
[ACCUMULATED-NII-CURRENT]                            0
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                              0
[OVERDISTRIBUTION-GAINS]                             0
[ACCUM-APPREC-OR-DEPREC]                             0
[NET-ASSETS]                                 4,407,799
[DIVIDEND-INCOME]                                    0
[INTEREST-INCOME]                              119,644
[OTHER-INCOME]                                       0
[EXPENSES-NET]                                  26,245
[NET-INVESTMENT-INCOME]                         93,399
[REALIZED-GAINS-CURRENT]                             8
[APPREC-INCREASE-CURRENT]                            0
[NET-CHANGE-FROM-OPS]                           93,407
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                       93,399
[DISTRIBUTIONS-OF-GAINS]                             8
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                      3,243,802
[NUMBER-OF-SHARES-REDEEMED]                     95,049
[SHARES-REINVESTED]                          3,683,595
[NET-CHANGE-IN-ASSETS]                       (344,737)
[ACCUMULATED-NII-PRIOR]                              0
[ACCUMULATED-GAINS-PRIOR]                            0
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                            6,347
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                                 26,245
[AVERAGE-NET-ASSETS]                         4,267,000
[PER-SHARE-NAV-BEGIN]                             1.00
[PER-SHARE-NII]                                   0.02
[PER-SHARE-GAIN-APPREC]                              0
[PER-SHARE-DIVIDEND]                              0.02
[PER-SHARE-DISTRIBUTIONS]                            0
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                               1.00
[EXPENSE-RATIO]                                   1.24
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>