| Cornillon-en-Trièves | |
| Commune Status: | Commune |
| Arrondissement: | Grenoble |
| Canton: | Matheysine-Trièves |
| Insee: | 38127 |
| Postal Code: | 38710 |
| Mayor: | Gérard Baup[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.8306°N 5.7183°W |
| Elevation M: | 800 |
| Elevation Min M: | 493 |
| Elevation Max M: | 1106 |
| Area Km2: | 14 |
Cornillon-en-Trièves (in French pronounced as /kɔʁnijɔ̃ ɑ̃ tʁijɛv/; Occitan (post 1500);: Cornilhon) is a commune in the Isère department in southeastern France.