| Muzillac | |
| Native Name: | Muzilheg |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Famille Muzillac.svg |
| Coordinates: | 47.5539°N -2.4806°W |
| Insee: | 56143 |
| Postal Code: | 56190 |
| Arrondissement: | Vannes |
| Canton: | Muzillac |
| Mayor: | Michel Criaud[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Arc Sud Bretagne |
| Elevation Min M: | 0 |
| Elevation Max M: | 65 |
| Area Km2: | 39.50 |
Muzillac (in French pronounced as /myzijak/;) is a commune in the Morbihan department of Brittany in north-western France.[2] Inhabitants of Muzillac are called in French Muzillacais.