| Langan | |
| Native Name: | Langan |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Langan (Ille et Vilaine).svg |
| Coordinates: | 48.2453°N -1.8522°W |
| Insee: | 35144 |
| Postal Code: | 35850 |
| Arrondissement: | Rennes |
| Canton: | Montauban-de-Bretagne |
| Mayor: | Daniel Yvanoff[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Rennes Métropole |
| Elevation Min M: | 69 |
| Elevation Max M: | 124 |
| Area Km2: | 7.80 |
Langan (in French pronounced as /lɑ̃ɡɑ̃/;) is a commune in the Ille-et-Vilaine department of Brittany in north-western France.
Inhabitants of Langan are called in French Langanais.