| Saint-Martin-Gimois | |
| Commune Status: | Commune |
| Arrondissement: | Auch |
| Canton: | Astarac-Gimone |
| Insee: | 32392 |
| Postal Code: | 32450 |
| Mayor: | Francis Laguidon[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.5194°N 0.8072°W |
| Elevation M: | 250 |
| Elevation Min M: | 180 |
| Elevation Max M: | 295 |
| Area Km2: | 6.68 |
Saint-Martin-Gimois (Gascon: Sent Martin Gimoés) is a commune in the Gers department in southwestern France.