| Lusanger | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Lusanger (Loire-Atlantique).svg |
| Arrondissement: | Châteaubriant-Ancenis |
| Canton: | Guémené-Penfao |
| Insee: | 44086 |
| Postal Code: | 44590 |
| Mayor: | Yves Fromentin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Châteaubriant-Derval |
| Coordinates: | 47.6819°N -1.5872°W |
| Elevation Min M: | 21 |
| Elevation Max M: | 72 |
| Area Km2: | 35.38 |
Lusanger (in French pronounced as /lyzɑ̃ʒe/; Gallo: Lusanjae, Breton: Luzevieg) is a commune in the Loire-Atlantique department in western France.