| Préchac | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Préchac (65).svg |
| Arrondissement: | Argelès-Gazost |
| Canton: | La Vallée des Gaves |
| Insee: | 65371 |
| Postal Code: | 65400 |
| Mayor: | Chantal Viard[1] |
| Term: | 2023 - 2026 |
| Intercommunality: | Pyrénées Vallées des Gaves |
| Coordinates: | 42.9933°N -0.0719°W |
| Elevation M: | 448 |
| Elevation Min M: | 420 |
| Elevation Max M: | 640 |
| Area Km2: | 1.59 |
Préchac (in French pronounced as /pʁeʃak/; Occitan (post 1500);: Preishac) is a commune in the Hautes-Pyrénées department in south-western France.