| Monchy-sur-Eu | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Monchy-sur-Eu.svg |
| Arrondissement: | Dieppe |
| Canton: | Eu |
| Insee: | 76442 |
| Postal Code: | 76260 |
| Mayor: | Christian Coulombel[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Villes Sœurs |
| Coordinates: | 49.9958°N 1.4539°W |
| Elevation M: | 119 |
| Elevation Min M: | 49 |
| Elevation Max M: | 142 |
| Area Km2: | 8.99 |
Monchy-sur-Eu is a commune in the Seine-Maritime department in the Normandy region in northern France.
A forestry and farming village situated in the Pays de Bray, some 20miles northeast of Dieppe at the junction of the D126 and the D58 roads.