| Châteauvieux | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Châteauvieux.svg |
| Arrondissement: | Draguignan |
| Canton: | Flayosc |
| Insee: | 83040 |
| Postal Code: | 83840 |
| Mayor: | Nans Bellini[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.7781°N 6.5789°W |
| Elevation M: | 1050 |
| Elevation Min M: | 843 |
| Elevation Max M: | 1271 |
| Area Km2: | 14.97 |
Châteauvieux (in French ʃɑtovjø/; Occitan (post 1500);: Castèuvièlh) is a commune in the Var département in the Provence-Alpes-Côte d'Azur region, southeastern France. It is located in the Vallon des Bous, on the D52 road, 17 km south east of Castellane.