| Marignac | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de Marignac.jpg |
| Arrondissement: | Saint-Gaudens |
| Canton: | Bagnères-de-Luchon |
| Insee: | 31316 |
| Postal Code: | 31440 |
| Mayor: | André Campagne[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pyrénées Haut Garonnaises |
| Coordinates: | 42.915°N 0.6592°W |
| Elevation M: | 510 |
| Elevation Min M: | 475 |
| Elevation Max M: | 2154 |
| Area Km2: | 12.96 |
Marignac (in French pronounced as /maʁiɲak/; Occitan (post 1500);: Marinhac) is a commune in the Haute-Garonne department in southwestern France.