| Saint-Martin-la-Garenne | |
| Commune Status: | Commune |
| Arrondissement: | Mantes-la-Jolie |
| Canton: | Limay |
| Insee: | 78567 |
| Postal Code: | 78520 |
| Mayor: | Stephan Champagne[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CU Grand Paris Seine et Oise |
| Coordinates: | 49.0408°N 1.6897°W |
| Elevation Min M: | 9 |
| Elevation Max M: | 152 |
| Area Km2: | 15.75 |
Saint-Martin-la-Garenne (in French pronounced as /sɛ̃ maʁtɛ̃ la ɡaʁɛn/) is a commune in the Yvelines department in the Île-de-France region in north-central France.