| Manuela Stellmach | |
| Nationality: | (until 1990) |
| Birth Date: | 22 February 1970 |
| Birth Place: | East Berlin, East Germany |
| Weight: | 65kg (143lb) |
| Club: | SC Dynamo Berlin SV Preußen Berlin |
| Strokes: | Freestyle |
Manuela Stellmach (born 22 February 1970 in Berlin) is a former freestyle swimmer from East Germany, who was a member of the women's relay team that won the gold medal in the 4×100 m freestyle relay at the 1988 Summer Olympics in Seoul, South Korea. At the same tournament she captured the bronze medal in the individual 200 m freestyle. Four years later, when Barcelona, Spain hosted the Summer Olympics, Stellmach ended up third (bronze) with the women's relay team from the Unified Germany.