| Grand-Brassac | |
| Commune Status: | Commune |
| Arrondissement: | Périgueux |
| Canton: | Brantôme en Périgord |
| Insee: | 24200 |
| Postal Code: | 24350 |
| Mayor: | Philippe Boismoreau[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 45.295°N 0.4794°W |
| Elevation M: | 150 |
| Elevation Min M: | 73 |
| Elevation Max M: | 211 |
| Area Km2: | 31.74 |
Grand-Brassac (pronounced as /fr/; oc|Grand Braçac) is a commune in the Dordogne department in Nouvelle-Aquitaine in southwestern France.