| Dieter Wellmann | |
| Birth Name: | Dieter Wellmann |
| Birth Date: | 7 December 1942 |
| Birth Place: | Szászrégen, Kingdom of Hungary (now Reghin, Romania) |
| Country: | Germany, West Germany |
| Sport: | Fencing |
| Retired: | Yes |
| Olympics: | 1964, 1968, 1972 |
| Show-Medals: | yes |
Dieter Wellmann (born 7 December 1942) is a German fencer. He represented the United Team of Germany in 1964 and West Germany in 1968 and 1972.[1]