| Cornier | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Cornier.svg |
| Arrondissement: | Bonneville |
| Canton: | La Roche-sur-Foron |
| Insee: | 74090 |
| Postal Code: | 74800 |
| Mayor: | Michel Roux[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC du Pays Rochois |
| Coordinates: | 46.0936°N 6.3006°W |
| Elevation Min M: | 453 |
| Elevation Max M: | 912 |
| Area Km2: | 6.78 |
| Website: | Mairie-cornier.com |
Cornier (in French pronounced as /kɔʁnje/) is a commune in the Haute-Savoie department in the Auvergne-Rhône-Alpes region in south-eastern France.