| Cormontreuil | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Cormontreuil.svg |
| Arrondissement: | Reims |
| Canton: | Reims-8 |
| Insee: | 51172 |
| Postal Code: | 51350 |
| Mayor: | Jean Marx[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CU Grand Reims |
| Coordinates: | 49.2231°N 4.0528°W |
| Elevation M: | 84 |
| Area Km2: | 4.62 |
Cormontreuil (in French pronounced as /kɔʁmɔ̃tʁœj/) is a commune in the Marne department in north-eastern France.