| Castelnuovo Scalo | |
| Coordinates: | 43.3081°N 11.4833°W |
| Province: | Siena (SI) |
| Comune: | Asciano Castelnuovo Berardenga |
| Elevation M: | 216 |
| Population Total: | 91 |
| Population As Of: | 2011 |
Castelnuovo Scalo is a village in Tuscany, central Italy, administratively a frazione of the comuni of Asciano and Castelnuovo Berardenga, province of Siena. At the time of the 2001 census its population was 73.[1]
Castelnuovo Scalo is about 20 km from Siena and 26 km from Asciano.