| Cazilhac | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Cazilhac (Aude).svg |
| Arrondissement: | Carcassonne |
| Canton: | Carcassonne-2 |
| Insee: | 11088 |
| Postal Code: | 11570 |
| Mayor: | Toni Carvajal[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Carcassonne Agglo |
| Coordinates: | 43.1839°N 2.3644°W |
| Elevation M: | 140 |
| Elevation Min M: | 126 |
| Elevation Max M: | 222 |
| Area Km2: | 3.83 |
Cazilhac (in French pronounced as /kazijak/; Occitan (post 1500);: Casilhac) is a commune in the Aude department in southern France.