| Birth Date: | 1948 9, df=y |
| Birth Place: | Kupyansk, Ukrainian SSR, Soviet Union |
| Height: | 1.66m (05.45feet) |
| Weight: | 61kg (134lb) |
| Sport: | Swimming |
| Club: | Dynamo Kharkiv |
| Show-Medals: | yes |
Tatyana Nikolaevna Devyatova (Russian: Татьяна Николаевна Девятова, Ukrainian: Тетяна Миколаївна Девятова (Костіцина); born 19 September 1948) is a Ukrainian former swimmer. She competed at the 1964 and 1968 Summer Olympics in individual butterfly and 4 × 100 m medley events. She finished in third and fourth place, respectively, in the relay, whereas individually she failed to reach the finals. She won a silver medal in the 4 × 100 m medley relay at the 1966 European Aquatics Championships and finished fourth in the 100 m butterfly.
After marriage she changed her last name to Kostitsyna (Russian: Костицина, Ukrainian: Костіцина).