| Barsac | |
| Commune Status: | Commune |
| Arrondissement: | Die |
| Canton: | Le Diois |
| Insee: | 26027 |
| Postal Code: | 26150 |
| Mayor: | François Gautier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Diois |
| Coordinates: | 44.7317°N 5.2919°W |
| Elevation Min M: | 305 |
| Elevation Max M: | 1207 |
| Area Km2: | 15.58 |
Barsac (in French pronounced as /baʁsak/; Occitan (post 1500);: Barçac) is a commune in the Drôme department in southeastern France.