| Petrona Mejía | |
| Party: | Nosotros (since 2023) National Unity of Hope (until 2023) |
| Birth Date: | 4 October 1973 |
| Birth Place: | Chimaltenango, Guatemala |
| Office: | Member of the Congress of Guatemala |
| Term Start: | 14 January 2020 |
| Term End: | 14 January 2024 |
| Constituency: | Chimaltenango |
Petrona Mejía Chutá (born 4 October 1973) is a Guatemalan politician and indigenous human rights activist, from National Unity of Hope party. She was a member of Congress from 2020 to 2024 and served as chair of the Indigenous Peoples Commission of Congress.[1]