| Costalpino | |
| Coordinates: | 43.2917°N 11.3042°W |
| Province: | Siena (SI) |
| Comune: | Siena |
| Elevation M: | 270 |
Costalpino is a village in Tuscany, central Italy, in the comune of Siena, province of Siena.
It is located about 5 km south-west of Siena. Renaissance painter Marco Pino was born in Costalpino in 1521.