| Kerastaris | |
| Name Local: | Κεραστάρης |
| Type: | community |
| Coordinates: | 37.4167°N 36°W |
| Periph: | Peloponnese |
| Periphunit: | Arcadia |
| Municipality: | Tripoli |
| Municunit: | Valtetsi |
| Pop Community: | 35 |
| Population As Of: | 2021 |
| Licence: | TP |
Kerastaris (el|Κεραστάρης) is a village in the municipal unit of Valtetsi, Arcadia, Greece. It is situated on a hillside north of the river Alfeios. It is 2 km west of Asea, 2 km north of Athinaio, 9 km east of Megalopoli and 16 km southwest of Tripoli.
| Year | Population | |
|---|---|---|
| 1981 | 100 | |
| 1991 | 120 | |
| 2001 | 75 | |
| 2011 | 39 | |
| 2021 | 35 |