| Barésia-sur-l'Ain | |
| Commune Status: | Commune |
| Coordinates: | 46.55°N 5.7119°W |
| Insee: | 39038 |
| Postal Code: | 39130 |
| Arrondissement: | Lons-le-Saunier |
| Canton: | Saint-Laurent-en-Grandvaux |
| Mayor: | Franck Hugonnet[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 423 |
| Elevation Max M: | 567 |
| Area Km2: | 9.39 |
Barésia-sur-l'Ain (in French pronounced as /baʁezja syʁ lɛ̃/, literally Barésia on the Ain) is a commune in the Jura department in the region of Bourgogne-Franche-Comté in eastern France.[2]