| Cassen | |
| Commune Status: | Commune |
| Arrondissement: | Dax |
| Canton: | Coteau de Chalosse |
| Insee: | 40068 |
| Postal Code: | 40380 |
| Mayor: | Didier Gaugeacq[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.7622°N -0.8594°W |
| Elevation M: | 59 |
| Elevation Min M: | 15 |
| Elevation Max M: | 65 |
| Area Km2: | 5.97 |
Cassen is a commune in the Landes department in Nouvelle-Aquitaine in southwestern France.[2]