| Nivillac | |
| Native Name: | Nivilieg |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Nivillac 01 (Morbihan).svg |
| Coordinates: | 47.5347°N -2.2811°W |
| Insee: | 56147 |
| Postal Code: | 56130 |
| Arrondissement: | Vannes |
| Canton: | Muzillac |
| Mayor: | Guy David[1] |
| Term: | 2022 - 2026 |
| Intercommunality: | CC Arc Sud Bretagne |
| Elevation Min M: | 0 |
| Elevation Max M: | 71 |
| Area Km2: | 55.48 |
Nivillac (in French pronounced as /nivijak/;) is a commune in the Morbihan department and Brittany region of north-western France.[2]
In French the inhabitants of Nivillac are known as Nivillacois.