| Assac | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Assac (Tarn).svg |
| Arrondissement: | Albi |
| Canton: | Carmaux-1 Le Ségala |
| Insee: | 81019 |
| Postal Code: | 81340 |
| Mayor: | Myriam Vigroux[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Val 81 |
| Coordinates: | 43.9761°N 2.4403°W |
| Elevation M: | 451 |
| Elevation Min M: | 200 |
| Elevation Max M: | 525 |
| Area Km2: | 15.06 |
Assac (in French pronounced as /asak/; Occitan (post 1500);: Açac) is a commune of the Tarn department in southern France.