| Arbia | |
| Coordinates: | 43.2936°N 11.4094°W |
| Province: | Siena (SI) |
| Comune: | Asciano |
| Elevation M: | 185 |
| Population Total: | 1582 |
| Population As Of: | 2011 |
Arbia is a town in Tuscany, central Italy, administratively a frazione of the comune of Asciano, province of Siena. At the time of the 2001 census its population was 1,303.[1]
Arbia is about 13 km from Siena and 17 km from Asciano.