Katarraktis
Katarraktis is a mountain village in the municipal unit of Farres in the municipality of Erymanthos in Achaea, Greece. It is 5 km east of Chalandritsa and 20 km southeast of Patras. The village is situated near a 110 meters high waterfall, hence the name of the village. Relics from the Mycenean period can be found in the vicinity.
Population
| Year | Population |
| 1981 | 144 |
| 1991 | 193 |
| 2001 | 101 |
| 2011 | 93 |
| 2021 | 73 |