| Gailhan | |
| Image Size: | 150 |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Gailhan (Gard).svg |
| Arrondissement: | Le Vigan |
| Canton: | Quissac |
| Insee: | 30121 |
| Postal Code: | 30260 |
| Mayor: | Jacky Sipeire[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.8447°N 4.0325°W |
| Elevation M: | 60 |
| Elevation Min M: | 39 |
| Elevation Max M: | 211 |
| Area Km2: | 5.53 |
Gailhan (pronounced as /fr/; oc|Galhan) is a commune in the Gard department in southern France.