| Lessy | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Lessy.svg |
| Arrondissement: | Metz |
| Canton: | Les Coteaux de Moselle |
| Insee: | 57396 |
| Postal Code: | 57160 |
| Mayor: | Jean-François Losch[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Metz Métropole |
| Coordinates: | 49.1203°N 6.0964°W |
| Elevation M: | 249 |
| Elevation Min M: | 183 |
| Elevation Max M: | 344 |
| Area Km2: | 2.85 |
Lessy (in French pronounced as /lesi/;) is a commune in the Moselle department in Grand Est in north-eastern France.