| Usini | |
| Official Name: | Comune di Usini |
| Pushpin Map: | Italy Sardinia |
| Coordinates: | 40.6667°N 40°W |
| Province: | (SS) |
| Area Total Km2: | 30.68 |
| Population Footnotes: | [1] |
| Population Total: | 4200 |
| Population As Of: | 28 February 2009 |
| Population Demonym: | Usinesi |
| Elevation M: | 200 |
| Saint: | Natività di Maria Vergine |
| Day: | 8 September |
| Postal Code: | 07049 |
| Area Code: | 079 |
| Istat: | 090077 |
| Frazioni: | Ittiri, Ossi, Sassari, Tissi, Uri |
Usini is a town and comune in the province of Sassari, Sardinia, Italy.