| San Lorenzo del Vallo | |
| Official Name: | Comune di San Lorenzo del Vallo |
| Coordinates: | 39.6667°N 34°W |
| Region: | Calabria |
| Province: | Cosenza (CS) |
| Frazioni: | Fedula |
| Mayor: | Vincenzo Rimoli |
| Area Total Km2: | 22 |
| Population Footnotes: | [1] |
| Population Total: | 3521 |
| Population As Of: | 31 May 2010 |
| Population Demonym: | Sanlorenzani |
| Elevation M: | 365 |
| Saint: | St. Lawrence |
| Postal Code: | 87040 |
| Area Code: | 0981 |
San Lorenzo del Vallo (Sullarënxa) is an Arbëreshë[2] town and comune in the province of Cosenza in the Calabria region of southern Italy.