| Castétis | |
| Commune Status: | Commune |
| Arrondissement: | Pau |
| Canton: | Artix et Pays de Soubestre |
| Insee: | 64177 |
| Postal Code: | 64300 |
| Mayor: | Henri Poustis[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Lacq-Orthez |
| Coordinates: | 43.4697°N -0.7128°W |
| Elevation M: | 93 |
| Elevation Min M: | 56 |
| Elevation Max M: | 182 |
| Area Km2: | 9.06 |
Castétis (in French pronounced as /kastetis/; Occitan (post 1500);: Castethins) is a commune in the Pyrénées-Atlantiques department in south-western France.