| María Prieto | |
| Fullname: | María Prieto O'Mullony |
| Nationality: | Spanish |
| Birth Date: | 3 October 1997 |
| Birth Place: | Zamora, Spain |
| Height: | 1.73 m |
| Position: | Right Back |
| Currentclub: | BM Bera Bera |
| Clubnumber: | 20 |
| Years1: | 2013–2015 |
| Clubs1: | Cleba León |
| Years2: | 2015–2019 |
| Clubs2: | BM Aula Cultural |
| Years3: | 2019- |
| Nationalyears1: | 2018– |
| Nationalteam1: | Spain |
| Nationalcaps1: | 8 |
| Nationalgoals1: | 25 |
María Prieto O'Mullony (born 3 October 1997) is a Spanish female handballer for BM Bera Bera and the Spanish national team. She has Extremadura origins on the mother's side
She won the gold medal at the 2018 Mediterranean Games.[1]