| Lanne-en-Barétous | |
| Commune Status: | Commune |
| Arrondissement: | Oloron-Sainte-Marie |
| Canton: | Oloron-Sainte-Marie-1 |
| Insee: | 64310 |
| Postal Code: | 64570 |
| Mayor: | Lydie Althapé[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Haut Béarn |
| Coordinates: | 43.1142°N -0.7583°W |
| Elevation M: | 306 |
| Elevation Min M: | 231 |
| Elevation Max M: | 1568 |
| Area Km2: | 41.48 |
Lanne-en-Barétous (in French pronounced as /lan ɑ̃ baʁetus/; Occitan (post 1500);: Lana de Varetons; Basque: Landa) is a commune in the southwestern French department of Pyrénées-Atlantiques.