| San Giovanni a Cerreto | |
| Coordinates: | 43.3472°N 11.3994°W |
| Province: | Siena (SI) |
| Comune: | Castelnuovo Berardenga Siena (partially) |
| Elevation M: | 313 |
| Population Total: | 276 |
| Population As Of: | 2011 |
San Giovanni a Cerreto is a village in Tuscany, central Italy, administratively a frazione of the comune of Castelnuovo Berardenga, province of Siena. At the time of the 2001 census its population was 276.[1]
San Giovanni a Cerreto is about 10 km from Siena and 15 km from Castelnuovo Berardenga.