| Lohéac | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Lohéac (Ille-et-Vilaine).svg |
| Coordinates: | 47.8664°N -1.8819°W |
| Insee: | 35155 |
| Postal Code: | 35550 |
| Arrondissement: | Redon |
| Canton: | Redon |
| Mayor: | Patrick Bertin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Vallons de Haute-Bretagne |
| Elevation Min M: | 34 |
| Elevation Max M: | 100 |
| Area Km2: | 5.11 |
Lohéac (in French pronounced as /lɔeak/; Breton: Lohieg; Gallo: Lozeiac) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France. The town is well known for cars and motorsport, hosting a rallycross track part of the FIA World Rallycross Championship, a tarmac racing circuit, a karting circuit, a quad bike circuit and the Manor of the Automobile, which hosts the Museum of the Automobile.
Inhabitants of Lohéac are called Lohéaciens in French.