| Bréhan | |
| Native Name: | Brehant-Loudieg |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Bréhan 56.svg |
| Coordinates: | 48.0617°N -2.6861°W |
| Insee: | 56024 |
| Postal Code: | 56580 |
| Arrondissement: | Pontivy |
| Canton: | Grand-Champ |
| Mayor: | Jean Guillot[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pontivy Communauté |
| Elevation Min M: | 45 |
| Elevation Max M: | 158 |
| Area Km2: | 51.65 |
Bréhan (in French pronounced as /bʁeɑ̃/; Breton: Brehant-Loudieg) is a commune in the Morbihan department of Brittany in northwestern France.
Inhabitants of Bréhan are called Bréhannais in French.