| Lago di San Floriano | |
| Pushpin Map: | Tuscany |
| Location: | Province of Grosseto, Tuscany |
| Coords: | 42.4258°N 11.3618°W |
| Basin Countries: | Italy |
| Area: | 0.3km2 |
| Elevation: | 6m (20feet) |
Lago di San Floriano is a lake in the Province of Grosseto, Tuscany. At an elevation of 6 m, its surface area is 0.3 km².