| Préchac | |
| Commune Status: | Commune |
| Arrondissement: | Condom |
| Canton: | Fleurance-Lomagne |
| Insee: | 32329 |
| Postal Code: | 32390 |
| Mayor: | Pierre Pellefigue[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Lomagne Gersoise |
| Coordinates: | 43.7917°N 0.5767°W |
| Elevation M: | 140 |
| Elevation Min M: | 114 |
| Elevation Max M: | 218 |
| Area Km2: | 12.79 |
Préchac (in French pronounced as /pʁeʃak/; Occitan (post 1500);: Preishac) is a commune in the Gers department in southwestern France.