| Thénac | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Thénac 24.svg |
| Arrondissement: | Bergerac |
| Canton: | Sud-Bergeracois |
| Insee: | 24549 |
| Postal Code: | 24240 |
| Mayor: | Jean-Jacques Chapellet[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Bergeracoise |
| Coordinates: | 44.7511°N 0.3419°W |
| Elevation M: | 170 |
| Elevation Min M: | 75 |
| Elevation Max M: | 191 |
| Area Km2: | 20.34 |
Thénac (in French pronounced as /tenak/; Occitan (post 1500);: Tenac) is a commune in the Dordogne department in Nouvelle-Aquitaine in southwestern France.