| Cachen | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Cachen (Landes).svg |
| Arrondissement: | Mont-de-Marsan |
| Canton: | Haute Lande Armagnac |
| Insee: | 40058 |
| Postal Code: | 40120 |
| Mayor: | Marie-Rose Langlade[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.0708°N -0.4286°W |
| Elevation M: | 88 |
| Elevation Min M: | 62 |
| Elevation Max M: | 114 |
| Area Km2: | 35.66 |
Cachen is a commune in the Landes department in Nouvelle-Aquitaine in southwestern France.[2]