| Le Mesnil-en-Vallée | |
| Arrondissement: | Cholet |
| Canton: | Saint-Florent-le-Vieil |
| Insee: | 49204 |
| Postal Code: | 49410 |
| Commune: | Mauges-sur-Loire |
| Coordinates: | 47.3667°N -0.9342°W |
| Elevation M: | 50 |
| Elevation Min M: | 7 |
| Elevation Max M: | 127 |
| Area Km2: | 17.72 |
| Population: | 1411 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
| Demonym: | Mesnilois, Mesniloise |
Le Mesnil-en-Vallée (pronounced as /fr/) is a former commune in the Maine-et-Loire department in western France. On 15 December 2015, it was merged into the new commune Mauges-sur-Loire.[2]