| Languenan | |
| Native Name: | Langenan |
| Commune Status: | Commune |
| Coordinates: | 48.5114°N -2.1261°W |
| Insee: | 22105 |
| Postal Code: | 22130 |
| Arrondissement: | Dinan |
| Canton: | Plancoët |
| Mayor: | Didier Morain[1] |
| Term: | 2022 - 2026 |
| Intercommunality: | Dinan Agglomération |
| Elevation Min M: | 55 |
| Elevation Max M: | 131 |
| Area Km2: | 15.95 |
Languenan (in French pronounced as /lɑ̃ɡnɑ̃/; Breton: Langenan) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.
Inhabitants of Languenan are called languenanais in French.