| Trégarvan | |
| Native Name: | Tregarvan |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Ville fr Trégarvan.svg |
| Coordinates: | 48.2519°N -4.2222°W |
| Elevation Min M: | 0 |
| Elevation Max M: | 223 |
| Insee: | 29289 |
| Postal Code: | 29560 |
| Arrondissement: | Châteaulin |
| Canton: | Crozon |
| Mayor: | Remi Carpentier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pleyben-Châteaulin-Porzay |
| Area Km2: | 9.68 |
Trégarvan (in French pronounced as /tʁeɡaʁvɑ̃/; Breton: Tregarvan) is a commune in the Finistère department of Brittany in north-western France.