| Aux-Aussat | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Aux-Aussat (Gers).svg |
| Arrondissement: | Mirande |
| Canton: | Mirande-Astarac |
| Insee: | 32020 |
| Postal Code: | 32170 |
| Mayor: | Michel Esterez[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Astarac Arros Gascogne |
| Coordinates: | 43.4372°N 0.2717°W |
| Elevation M: | 216 |
| Elevation Min M: | 189 |
| Elevation Max M: | 342 |
| Area Km2: | 12.61 |
Aux-Aussat is a commune in the Gers department in southwestern France.