| Louannec | |
| Native Name: | Louaneg |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Louannec (Côtes-d'Armor).svg |
| Coordinates: | 48.7947°N -3.4094°W |
| Insee: | 22134 |
| Postal Code: | 22700 |
| Arrondissement: | Lannion |
| Canton: | Perros-Guirec |
| Mayor: | Gervais Égault[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Lannion-Trégor Communauté |
| Elevation Min M: | 0 |
| Elevation Max M: | 108 |
| Area Km2: | 13.91 |
Louannec (in French pronounced as /lwanɛk/; Breton: Louaneg) is a commune in the Côtes-d'Armor department in Brittany in northwestern France.
The inhabitants are called louannecains in French and louanegad (Louanegiz) in Breton.
In 2008, 5.82% of primary school children attended bilingual schools.[2]