| Bonac-Irazein | |
| Commune Status: | Commune |
| Arrondissement: | Saint-Girons |
| Canton: | Couserans Ouest |
| Insee: | 09059 |
| Postal Code: | 09800 |
| Mayor: | Nadine Nény[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 42.8781°N 0.9747°W |
| Elevation M: | 708 |
| Elevation Min M: | 672 |
| Elevation Max M: | 2750 |
| Area Km2: | 38.13 |
Bonac-Irazein (in French pronounced as /bɔnak iʁazɛ̃/) is a commune in the Ariège department of southwestern France.
Inhabitants of Bonac-Irazein are called Bonacois.