[ARTICLE] 6
[CIK] 0000880583
[NAME] THE TRAVELERS SERIES TRUST
[SERIES]
   [NUMBER] 14
   [NAME] DISCIPLINED MID CAP STOCK PORTFOLIO
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   6-MOS
[FISCAL-YEAR-END]                          DEC-31-1999
[PERIOD-END]                               JUN-30-1999
[INVESTMENTS-AT-COST]                       28,969,383
[INVESTMENTS-AT-VALUE]                      31,713,334
[RECEIVABLES]                                  527,125
[ASSETS-OTHER]                                       0
[OTHER-ITEMS-ASSETS]                                 0
[TOTAL-ASSETS]                              32,240,459
[PAYABLE-FOR-SECURITIES]                       145,712
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                       90,400
[TOTAL-LIABILITIES]                            236,112
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                    28,582,153
[SHARES-COMMON-STOCK]                        2,231,837
[SHARES-COMMON-PRIOR]                        1,356,946
[ACCUMULATED-NII-CURRENT]                       41,902
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                        626,775
[OVERDISTRIBUTION-GAINS]                             0
[ACCUM-APPREC-OR-DEPREC]                     2,753,517
[NET-ASSETS]                                32,004,347
[DIVIDEND-INCOME]                              120,412
[INTEREST-INCOME]                               33,381
[OTHER-INCOME]                                       0
[EXPENSES-NET]                                 111,802
[NET-INVESTMENT-INCOME]                         41,991
[REALIZED-GAINS-CURRENT]                       753,446
[APPREC-INCREASE-CURRENT]                      766,228
[NET-CHANGE-FROM-OPS]                        1,561,665
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                       51,243
[DISTRIBUTIONS-OF-GAINS]                     1,191,443
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                        844,922
[NUMBER-OF-SHARES-REDEEMED]                     59,369
[SHARES-REINVESTED]                             89,338
[NET-CHANGE-IN-ASSETS]                      12,544,527
[ACCUMULATED-NII-PRIOR]                         51,154
[ACCUMULATED-GAINS-PRIOR]                    1,064,772
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                           89,320
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                                127,090
[AVERAGE-NET-ASSETS]                        23,769,649
[PER-SHARE-NAV-BEGIN]                            14.34
[PER-SHARE-NII]                                  00.01
[PER-SHARE-GAIN-APPREC]                          00.58
[PER-SHARE-DIVIDEND]                             00.02
[PER-SHARE-DISTRIBUTIONS]                        00.57
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                              14.34
[EXPENSE-RATIO]                                  00.95
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>