| Marmanhac | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Marmanhac 15.svg |
| Arrondissement: | Aurillac |
| Canton: | Naucelles |
| Insee: | 15118 |
| Postal Code: | 15250 |
| Mayor: | Michel Cosnier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Bassin d'Aurillac |
| Coordinates: | 45.0044°N 2.4831°W |
| Elevation Min M: | 627 |
| Elevation Max M: | 971 |
| Area Km2: | 24.24 |
Marmanhac (in French pronounced as /maʁmaɲak/) is a commune in the Cantal department in south-central France.