| María Ostolaza | |
| Nationality: | Peruvian |
| Height: | 1.63 m |
| Birth Date: | 26 February 1953 |
| Teamnumber: | 12 |
| Nationalyears: | 1971-1979 |
María Ostolaza (born 26 February 1953) is a Peruvian volleyball player. She competed in the women's tournament at the 1976 Summer Olympics.[1]