| Les Salles-de-Castillon | |
| Commune Status: | Commune |
| Arrondissement: | Libourne |
| Canton: | Les Coteaux de Dordogne |
| Insee: | 33499 |
| Postal Code: | 33350 |
| Mayor: | Marie-Claude Lavignac[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.9128°N -0.0003°W |
| Elevation M: | 82 |
| Elevation Min M: | 18 |
| Elevation Max M: | 100 |
| Area Km2: | 10.81 |
Les Salles-de-Castillon (pronounced as /fr/; oc|Las Salas de Castilhon) is a commune in the Gironde department in Nouvelle-Aquitaine in southwestern France.