| Ramón Tatís | |
| Position: | Pitcher |
| Bats: | Left |
| Throws: | Left |
| Birth Date: | 5 January 1973 |
| Birth Place: | Guayubín, Dominican Republic |
| Debutleague: | MLB |
| Debutdate: | April 6 |
| Debutyear: | 1997 |
| Debutteam: | Chicago Cubs |
| Finalleague: | MLB |
| Finaldate: | September 27 |
| Finalyear: | 1998 |
| Finalteam: | Tampa Bay Devil Rays |
| Debut2league: | NPB |
| Debut2date: | August 30 |
| Debut2year: | 2000 |
| Debut2team: | Nippon-Ham Fighters |
| Final2league: | NPB |
| Final2date: | August 30 |
| Final2year: | 2000 |
| Final2team: | Nippon-Ham Fighters |
| Statleague: | MLB |
| Stat2label: | Earned run average |
| Stat2value: | 6.82 |
| Stat1label: | Win–loss record |
| Stat1value: | 1–1 |
| Stat3label: | Strikeouts |
| Stat3value: | 38 |
| Stat2league: | NPB |
| Stat22label: | Earned run average |
| Stat22value: | 54.00 |
| Stat21label: | Win–loss record |
| Stat21value: | 0–0 |
| Stat23label: | Strikeouts |
| Stat23value: | 0 |
| Teams: | |
Ramón Francisco Tatis Medrano (born January 5, 1973) is a Dominican former Major League Baseball pitcher. He was signed by the New York Mets as an amateur free agent in 1990 and played parts of two seasons in the majors, and . He also played in Japan for the Nippon-Ham Fighters in .