| Gellin | |
| Commune Status: | Commune |
| Coordinates: | 46.7328°N 6.2386°W |
| Insee: | 25263 |
| Postal Code: | 25240 |
| Arrondissement: | Pontarlier |
| Canton: | Frasne |
| Mayor: | Emilie Cessin[1] |
| Term: | 2021 - 2026 |
| Intercommunality: | Lacs et Montagnes du Haut-Doubs |
| Elevation Min M: | 915 |
| Elevation Max M: | 1293 |
| Area Km2: | 4.87 |
Gellin (in French pronounced as /ʒɛlɛ̃/) is a commune in the Doubs department in the Bourgogne-Franche-Comté region in eastern France.