| Ansan | |
| Commune Status: | Commune |
| Arrondissement: | Auch |
| Canton: | Auch-2 |
| Insee: | 32002 |
| Postal Code: | 32270 |
| Mayor: | Jean-Claude Bady[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.6914°N 0.7753°W |
| Elevation M: | 207 |
| Elevation Min M: | 138 |
| Elevation Max M: | 212 |
| Area Km2: | 7.76 |
Ansan (in French pronounced as /ɑ̃sɑ̃/) is a commune in the Gers department in southwestern France.
Ansan is located in the canton of Auch-2 and in the arrondissement of Auch.