| Ploumagoar | |
| Commune Status: | Commune |
| Coordinates: | 48.5458°N -3.1314°W |
| Insee: | 22225 |
| Postal Code: | 22970 |
| Arrondissement: | Guingamp |
| Canton: | Guingamp |
| Mayor: | Yannick Echevest[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Guingamp-Paimpol Agglomération |
| Elevation Min M: | 67 |
| Elevation Max M: | 202 |
| Area Km2: | 32.07 |
Ploumagoar (in French pronounced as /plumaɡwaʁ/;) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.
Inhabitants of Ploumagoar are called ploumagoariens in French.
The municipality launched a linguistic plan through Ya d'ar brezhoneg on 11 February 2008.