| Massérac | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Massérac (Loire-Atlantique).svg |
| Arrondissement: | Châteaubriant-Ancenis |
| Canton: | Guémené-Penfao |
| Insee: | 44092 |
| Postal Code: | 44290 |
| Mayor: | Fabrice Sanchez[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Redon Agglomération |
| Coordinates: | 47.6736°N -1.9133°W |
| Elevation Min M: | 0 |
| Elevation Max M: | 55 |
| Area Km2: | 18.78 |
| Website: | https://masserac.bzh/ |
Massérac (pronounced as /fr/; Gallo: Macérac, br|Merzhereg) is a commune in the Loire-Atlantique department in western France.