| Nassiet | |
| Commune Status: | Commune |
| Arrondissement: | Dax |
| Canton: | Coteau de Chalosse |
| Insee: | 40203 |
| Postal Code: | 40330 |
| Mayor: | Karine Lapos[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.6008°N -0.6772°W |
| Elevation M: | 122 |
| Elevation Min M: | 38 |
| Elevation Max M: | 145 |
| Area Km2: | 11.77 |
Nassiet (pronounced as /fr/) is a commune in the Landes department in Nouvelle-Aquitaine in southwestern France.[2]