| Carsac-Aillac | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Carsac-Aillac 24.svg |
| Arrondissement: | Sarlat-la-Canéda |
| Canton: | Terrasson-Lavilledieu |
| Insee: | 24082 |
| Postal Code: | 24200 |
| Mayor: | Patrick Bonnefon[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.8408°N 1.2769°W |
| Elevation M: | 99 |
| Elevation Min M: | 60 |
| Elevation Max M: | 269 |
| Area Km2: | 17.31 |
Carsac-Aillac (pronounced as /fr/; oc|Carsac e Alhac) is a commune in the Dordogne department in Nouvelle-Aquitaine in southwestern France.