| Trémeur | |
| Native Name: | Treveur |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Trémeur (Côtes-d'Armor).svg |
| Coordinates: | 48.3483°N -2.2625°W |
| Insee: | 22369 |
| Postal Code: | 22250 |
| Arrondissement: | Saint-Brieuc |
| Canton: | Broons |
| Mayor: | Francis Dault[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Lamballe Terre et Mer |
| Elevation Min M: | 30 |
| Elevation Max M: | 87 |
| Area Km2: | 14.56 |
Trémeur (in French pronounced as /tʁemœʁ/;) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.
Inhabitants of Trémeur are called trémeurois in French.