| Montreuil-sur-Epte | |
| Commune Status: | Commune |
| Coordinates: | 49.1772°N 1.6792°W |
| Arrondissement: | Pontoise |
| Canton: | Vauréal |
| Mayor: | Jean-Pierre Javelot[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 27 |
| Elevation Max M: | 157 |
| Area Km2: | 7.15 |
| Insee: | 95429 |
| Postal Code: | 95770 |
Montreuil-sur-Epte (in French pronounced as /mɔ̃tʁœj syʁ ɛpt/, literally Montreuil on Epte) is a commune in the Val-d'Oise department in Île-de-France in northern France.