| Sentenac-d'Oust | |
| Commune Status: | Commune |
| Arrondissement: | Saint-Girons |
| Canton: | Couserans Est |
| Insee: | 09291 |
| Postal Code: | 09140 |
| Mayor: | Damien Duran[1] |
| Term: | 2023 - 2026 |
| Coordinates: | 42.8767°N 1.1786°W |
| Elevation M: | 760 |
| Elevation Min M: | 592 |
| Elevation Max M: | 2304 |
| Area Km2: | 18.38 |
Sentenac-d'Oust is a commune in the Ariège department in southwestern France.
Inhabitants of Sentenac-d'Oust are called Sentenacais in French.