| Lachapelle-sous-Aubenas | |
| Commune Status: | Commune |
| Arrondissement: | Largentière |
| Canton: | Aubenas-2 |
| Insee: | 07122 |
| Postal Code: | 07200 |
| Mayor: | Sandrine Genest[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.565°N 4.3647°W |
| Elevation M: | 205 |
| Elevation Min M: | 178 |
| Elevation Max M: | 449 |
| Area Km2: | 10.12 |
Lachapelle-sous-Aubenas (pronounced as /fr/, literally Lachapelle under Aubenas) is a commune in the Ardèche department in southern France.