| Château-Bernard | |
| Commune Status: | Commune |
| Arrondissement: | Grenoble |
| Canton: | Matheysine-Trièves |
| Insee: | 38090 |
| Postal Code: | 38650 |
| Mayor: | Lydia Palazzi-Vallier[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.9758°N 5.5769°W |
| Elevation M: | 855 |
| Elevation Min M: | 754 |
| Elevation Max M: | 2286 |
| Area Km2: | 18 |
Château-Bernard (in French pronounced as /ʃɑto bɛʁnaʁ/) is a commune in the Isère department in southeastern France.