| Bénaix | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Bénaix (Ariège).svg |
| Arrondissement: | Pamiers |
| Canton: | Pays d'Olmes |
| Insee: | 09051 |
| Postal Code: | 09300 |
| Mayor: | Jean Barrau-Hillot[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays d'Olmes |
| Coordinates: | 42.9078°N 1.8606°W |
| Elevation M: | 639 |
| Elevation Min M: | 517 |
| Elevation Max M: | 980 |
| Area Km2: | 14.68 |
Bénaix is a commune in the Ariège department of southwestern France.
Inhabitants of Bénaix are called Bénaixois.