| Saint-Martial | |
| Commune Status: | Commune |
| Arrondissement: | Langon |
| Canton: | L'Entre-Deux-Mers |
| Insee: | 33440 |
| Postal Code: | 33490 |
| Mayor: | Antoine Peron[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.6386°N -0.1742°W |
| Elevation M: | 85 |
| Elevation Min M: | 47 |
| Elevation Max M: | 112 |
| Area Km2: | 7.47 |
Saint-Martial (in French pronounced as /sɛ̃ maʁsjal/; Occitan (post 1500);: Sant Marçau) is a commune in the Gironde department in Nouvelle-Aquitaine in southwestern France.