| Narcastet | |
| Commune Status: | Commune |
| Arrondissement: | Pau |
| Canton: | Ouzom, Gave et Rives du Neez |
| Insee: | 64413 |
| Postal Code: | 64510 |
| Mayor: | Jean-Pierre Faux[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Pays de Nay |
| Coordinates: | 43.2517°N -0.3186°W |
| Elevation M: | 220 |
| Elevation Min M: | 192 |
| Elevation Max M: | 379 |
| Area Km2: | 4.65 |
Narcastet (pronounced as /fr/; Occitan (post 1500);: Narcastèth) is a commune in the Pyrénées-Atlantiques department in south-western France.