| San Leonino | |
| Coordinates: | 43.42°N 11.2972°W |
| Province: | Siena (SI) |
| Comune: | Castellina in Chianti |
| Elevation M: | 368 |
| Population Total: | 26 |
| Population As Of: | 2011 |
San Leonino is a village in Tuscany, central Italy, administratively a frazione of the comune of Castellina in Chianti, province of Siena. At the time of the 2001 census its population was 11.[1]
San Leonino is about 19 km from Siena and 7 km from Castellina in Chianti.