| Montoy-Flanville | |
| Image Coat Of Arms: | Blason ville fr Montoy-Flanville 57.svg |
| Arrondissement: | Metz |
| Canton: | Le Pays Messin |
| Commune: | Ogy-Montoy-Flanville |
| Insee: | 57482 |
| Postal Code: | 57645 |
| Coordinates: | 49.1219°N 6.2817°W |
| Elevation M: | 206 |
| Elevation Min M: | 189 |
| Elevation Max M: | 279 |
| Area Km2: | 6.32 |
| Population: | 1286 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Montoy-Flanville (in French pronounced as /mɔ̃twa flɑ̃vil/; German: Montingen-Flanheim) is a former commune in the Moselle department in Grand Est in north-eastern France. On 1 January 2017, it was merged into the new commune Ogy-Montoy-Flanville.[2]