| Manfred Steffny | |
| Nationality: | German |
| Sport: | Long-distance running |
| Event: | Marathon |
| Birth Date: | 14 August 1941 |
| Birth Place: | Trier, Germany |
Manfred Steffny (born 14 August 1941) is a German long-distance runner. He competed in the marathon at the 1968 Summer Olympics and the 1972 Summer Olympics representing West Germany.[1]