| Cauna | |
| Commune Status: | Commune |
| Arrondissement: | Mont-de-Marsan |
| Canton: | Chalosse Tursan |
| Insee: | 40076 |
| Postal Code: | 40500 |
| Mayor: | Daniel Cardonne[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.7825°N -0.6381°W |
| Elevation M: | 45 |
| Elevation Min M: | 21 |
| Elevation Max M: | 74 |
| Area Km2: | 13.39 |
Cauna (in French pronounced as /kona/; Occitan (post 1500);: Caunar) is a commune in the Landes department in Nouvelle-Aquitaine in southwestern France.[2]