| Mainvilliers | |
| Arrondissement: | Pithiviers |
| Canton: | Le Malesherbois |
| Insee: | 45190 |
| Postal Code: | 45330 |
| Commune: | Le Malesherbois |
| Coordinates: | 48.3014°N 2.2803°W |
| Elevation Min M: | 117 |
| Elevation Max M: | 140 |
| Area Km2: | 10.30 |
| Population: | 263 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Mainvilliers (in French pronounced as /mɛ̃vilje/) is a former commune in the Loiret department in north-central France. On 1 January 2016, it was merged into the new commune of Le Malesherbois.[2]