| Katastari | |
| Name Local: | Καταστάρι |
| Type: | community |
| Periph: | Ionian Islands |
| Periphunit: | Zakynthos |
| Municipality: | Zakynthos |
| Pop Community: | 1331 |
| Population As Of: | 2021 |
| Coordinates: | 37.8283°N 65.4°W |
| Licence: | ZA |
Katastari (Greek, Modern (1453-);: Καταστάρι) is a village and a community in the Alykes municipal unit of the island Zakynthos, Greece. It is situated at the foot of the Vrachionas mountain, 2 km from the Ionian Sea coast. It is located 13 kilometers northwest of Zakynthos City and 10 km southeast of Volimes.
| Year | Population | |
|---|---|---|
| 1981 | 1,097 | |
| 1991 | 1,190 | |
| 2001 | 1,287 | |
| 2011 | 1,379 | |
| 2021 | 1,331 |