| Cornillon-sur-l'Oule | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Cornillon-sur-l'Oule.svg |
| Arrondissement: | Nyons |
| Canton: | Nyons et Baronnies |
| Insee: | 26105 |
| Postal Code: | 26510 |
| Mayor: | Denis Conil[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.4594°N 5.3686°W |
| Elevation Min M: | 470 |
| Elevation Max M: | 1223 |
| Area Km2: | 14.55 |
Cornillon-sur-l'Oule (in French pronounced as /kɔʁnijɔ̃ syʁ lul/; Occitan (post 1500);: Cornilhon) is a commune in the Drôme department in southeastern France.