| Maria Gretzer | |
| Nationality: | Swedish |
| Sport: | Equestrian |
| Birth Date: | 11 November 1958 |
| Birth Place: | Örebro, Sweden |
Maria Gretzer (born 11 November 1958) is a Swedish equestrian. She competed at the 1992 Summer Olympics, the 1996 Summer Olympics and the 2000 Summer Olympics.[1]