| Saint-Martin-Valmeroux | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Martin-Valmeroux (Cantal).svg |
| Arrondissement: | Mauriac |
| Canton: | Mauriac |
| Insee: | 15202 |
| Postal Code: | 15140 |
| Mayor: | Christian Fournier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays de Salers |
| Coordinates: | 45.1183°N 2.4258°W |
| Elevation M: | 650 |
| Elevation Min M: | 609 |
| Elevation Max M: | 963 |
| Area Km2: | 25.92 |
Saint-Martin-Valmeroux (in French pronounced as /sɛ̃ maʁtɛ̃ valməʁu/；Occitan (post 1500);: Sant Martin de Valmaron) is a commune in the Cantal department in south-central France.
The Maronne river flows through the middle of the commune and crosses the village of Saint-Martin-Valmeroux.