| Palaiochouni | |
| Name Local: | Παλαιοχούνη |
| Type: | community |
| Coordinates: | 37.4°N 34°W |
| Periph: | Peloponnese |
| Periphunit: | Arcadia |
| Municipality: | Tripoli |
| Municunit: | Valtetsi |
| Pop Community: | 16 |
| Population As Of: | 2021 |
| Licence: | TP |
Palaiochouni (Greek, Modern (1453-);: Παλαιοχούνη) is a village in the municipal unit Valtetsi, Arcadia, Greece. It is situated in the hills on the eastern end of the plain of Megalopoli, at 700 m elevation. It is 2 km east of Mallota, 3 km west of Athinaio, 7 km east of Megalopoli and 19 km southwest of Tripoli. The Greek National Road 7 (Kalamata - Megalopoli - Tripoli) passes through the village.
| Year | Population | |
|---|---|---|
| 1981 | 85 | |
| 1991 | 41 | |
| 2001 | 42 | |
| 2011 | 24 | |
| 2021 | 16 |