| Orthoux-Sérignac-Quilhan | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville d'Orthoux-Sérignac-Quilhan (30).svg |
| Arrondissement: | Le Vigan |
| Canton: | Quissac |
| Insee: | 30192 |
| Postal Code: | 30260 |
| Mayor: | Jean-Michel Roque[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Piémont Cévenol |
| Coordinates: | 43.8928°N 4.0575°W |
| Elevation M: | 125 |
| Elevation Min M: | 44 |
| Elevation Max M: | 206 |
| Area Km2: | 13.98 |
Orthoux-Sérignac-Quilhan (pronounced as /fr/; oc|Ortons, Serinhan e Quilhan) is a commune in the Gard department in southern France.