| Ruffiac | |
| Native Name: | Rufieg |
| Commune Status: | Commune |
| Image Coat Of Arms: | CoA fr Ruffiac.svg |
| Coordinates: | 47.8192°N -2.2806°W |
| Insee: | 56200 |
| Postal Code: | 56140 |
| Arrondissement: | Vannes |
| Canton: | Moréac |
| Mayor: | Thierry Gue[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC de l'Oust à Brocéliande |
| Elevation Min M: | 10 |
| Elevation Max M: | 102 |
| Area Km2: | 36.47 |
Ruffiac (in French pronounced as /ʁyfjak/; Breton: Rufieg) is a commune in the Morbihan department of Brittany in north-western France.[2] Inhabitants of Ruffiac are called in French Ruffiacois.