| Saint-Martin-Château | |
| Commune Status: | Commune |
| Arrondissement: | Guéret |
| Canton: | Felletin |
| Insee: | 23216 |
| Postal Code: | 23460 |
| Mayor: | Nicolas Derieux[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Creuse Sud Ouest |
| Coordinates: | 45.8581°N 1.7997°W |
| Elevation M: | 600 |
| Elevation Min M: | 410 |
| Elevation Max M: | 741 |
| Area Km2: | 31.25 |
Saint-Martin-Château (Limousin: Sent Martin Chasteu) is a commune in the Creuse department in central France.