| Saint-Martin-de-Goyne | |
| Commune Status: | Commune |
| Arrondissement: | Condom |
| Canton: | Lectoure-Lomagne |
| Insee: | 32391 |
| Postal Code: | 32480 |
| Mayor: | Alain Dabos[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Lomagne Gersoise |
| Coordinates: | 44.0036°N 0.5672°W |
| Elevation M: | 160 |
| Elevation Min M: | 66 |
| Elevation Max M: | 186 |
| Area Km2: | 5.6 |
Saint-Martin-de-Goyne (in French pronounced as /sɛ̃ maʁtɛ̃ də gɔjn/; Occitan (post 1500);: Sent Martin de Güeina) is a commune in the Gers département in southwestern France.