| Saint-Cierge-la-Serre | |
| Commune Status: | Commune |
| Arrondissement: | Privas |
| Canton: | La Voulte-sur-Rhône |
| Insee: | 07221 |
| Postal Code: | 07800 |
| Mayor: | Olivier Naudot[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Privas Centre Ardèche |
| Coordinates: | 44.7942°N 4.6872°W |
| Elevation M: | 520 |
| Elevation Min M: | 179 |
| Elevation Max M: | 829 |
| Area Km2: | 16.2 |
Saint-Cierge-la-Serre (in French pronounced as /sɛ̃ sjɛʁʒ la sɛʁ/; Occitan (post 1500);: Sant Cierge la Serre) is a commune in the Ardèche department in the Rhône Valley in southern France.