| Thomas Flemming | |
| Fullname: | Thomas Flemming |
| Nationality: | East German |
| Birth Date: | 14 July 1967 |
| Birth Place: | Schlema im Erzgebirge, Bezirk Karl-Marx-Stadt, East Germany |
| Weight: | 86kg (190lb) |
Thomas Flemming (born 14 July 1967, in Bad Schlema) is a former freestyle swimmer from East Germany who competed for his native country at the 1988 Summer Olympics. There he won the silver medal in the 4×200 m freestyle, alongside Uwe Dassler, Sven Lodziewski, and Steffen Zesner. Flemming also won the bronze medal in the 4×100 m freestyle, together with Steffen Zesner, Lars Hinneburg, and Dirk Richter.