| Châteauvieux-les-Fossés | |
| Commune Status: | Commune |
| Coordinates: | 47.065°N 6.2028°W |
| Insee: | 25130 |
| Postal Code: | 25840 |
| Arrondissement: | Besançon |
| Canton: | Ornans |
| Mayor: | Danièle Fiétier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Loue-Lison |
| Elevation Min M: | 347 |
| Elevation Max M: | 715 |
| Area Km2: | 4.46 |
Châteauvieux-les-Fossés (in French pronounced as /ʃɑtovjø le fɔse/) is a commune in the Doubs department in the Bourgogne-Franche-Comté region in eastern France.