| Loisy | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Loisy 54.svg |
| Arrondissement: | Nancy |
| Canton: | Pont-à-Mousson |
| Insee: | 54320 |
| Postal Code: | 54700 |
| Mayor: | André Favre[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Bassin de Pont-à-Mousson |
| Coordinates: | 48.8669°N 6.0967°W |
| Elevation M: | 186 |
| Elevation Min M: | 179 |
| Elevation Max M: | 379 |
| Area Km2: | 5.58 |
Loisy (in French pronounced as /lwazi/) is a commune in the Meurthe-et-Moselle department in north-eastern France.