| Nadaillac | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Nadaillac (Dordogne).svg |
| Arrondissement: | Sarlat-la-Canéda |
| Canton: | Terrasson-Lavilledieu |
| Insee: | 24301 |
| Postal Code: | 24590 |
| Mayor: | Jean-Claude Veyssière[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays de Fénelon |
| Coordinates: | 45.0397°N 1.3986°W |
| Elevation M: | 205 |
| Elevation Min M: | 193 |
| Elevation Max M: | 351 |
| Area Km2: | 26.90 |
Nadaillac (pronounced as /fr/; oc|Nadalhac) is a commune in the Dordogne department in Nouvelle-Aquitaine in southwestern France.