| Plounérin | |
| Native Name: | Plounerin |
| Commune Status: | Commune |
| Coordinates: | 48.5675°N -3.54°W |
| Insee: | 22227 |
| Postal Code: | 22780 |
| Arrondissement: | Lannion |
| Canton: | Plestin-les-Grèves |
| Mayor: | Patrick L'Héréec[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Lannion-Trégor Communauté |
| Elevation Min M: | 105 |
| Elevation Max M: | 247 |
| Area Km2: | 25.89 |
Plounérin (in French pronounced as /pluneʁɛ̃/;) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.
Inhabitants of Plounérin are called plounérinais in French.
The municipality launched a linguistic plan through Ya d'ar brezhoneg on 29 July 2005.