| Anna Olasz | |
| Nationality: | Hungarian |
| Birth Date: | 19 September 1993 |
| Birth Place: | Szeged, Hungary[1] |
| Height: | 1.67 m |
| Weight: | 55 kg |
| Strokes: | Open water swimming |
| Show-Medals: | yes |
Anna Olasz (born 19 September 1993) is a Hungarian swimmer. She competed in the women's marathon 10 kilometre event at the 2016 Summer Olympics.[2] In 2020, she won the silver medal in the women's 10 km event at the 2020 European Aquatics Championships held in Budapest, Hungary, and the bronze medal in the team relay event.