| Saint-Martin-sur-Lavezon | |
| Commune Status: | Commune |
| Arrondissement: | Privas |
| Canton: | Le Pouzin |
| Insee: | 07270 |
| Postal Code: | 07400 |
| Mayor: | Marie-Noëlle Laville[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.6381°N 4.6519°W |
| Elevation M: | 228 |
| Elevation Min M: | 119 |
| Elevation Max M: | 702 |
| Area Km2: | 23.54 |
Saint-Martin-sur-Lavezon (pronounced as /fr/) is a commune in the Ardèche department in southern France.