| Louppy-sur-Loison | |
| Commune Status: | Commune |
| Arrondissement: | Verdun |
| Canton: | Montmédy |
| Insee: | 55306 |
| Postal Code: | 55600 |
| Mayor: | Guy-Joël Chatton[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC du pays de Montmédy |
| Coordinates: | 49.445°N 5.3492°W |
| Elevation M: | 187 |
| Elevation Min M: | 182 |
| Elevation Max M: | 275 |
| Area Km2: | 14.36 |
Louppy-sur-Loison (in French pronounced as /lupi syʁ lwazɔ̃/) is a commune in the Meuse department in Grand Est in north-eastern France.