| Grossa | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Grossa (Corse-du-Sud).svg |
| Arrondissement: | Sartène |
| Canton: | Sartenais-Valinco |
| Insee: | 2A129 |
| Postal Code: | 20100 |
| Mayor: | Mathias Costanzo[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 41.6106°N 8.8781°W |
| Elevation M: | 325 |
| Elevation Min M: | 66 |
| Elevation Max M: | 566 |
| Area Km2: | 18.36 |
Grossa (in French pronounced as /ɡʁosa/; Corsican: A Grossa) is a commune in the Corse-du-Sud department of France on the island of Corsica.