| Gerta Lehmann | |
| Nationality: | Greek |
| Sport: | Equestrian |
| Birth Date: | 21 July 1979 |
| Birth Place: | Cagnes-sur-Mer, France |
Gerta Lehmann (born 21 July 1979) is a Greek former equestrian. She competed in the individual dressage event at the 2004 Summer Olympics.[1]