Kato Kastritsi Κάτω Καστρίτσι
Community
Kato Kastritsi
Coordinates: 38°17′N 21°48′E / 38.283°N 21.800°E / 38.283; 21.800
Country	Greece
Administrative region	West Greece
Regional unit	Achaea
Municipality	Patras
Municipal unit	Rio
Elevation	96 m (315 ft)
Population  (2021)[1]
• Community	798
Time zone	UTC+2 (EET)
• Summer (DST)	UTC+3 (EEST)
Postal code	265 00
Area code(s)	2160
Vehicle registration	AX

Kato Kastritsi (Greek: Κάτω Καστρίτσι) is a village and a community in the municipal unit of Rio, Achaea, Greece. The community consists of the villages Kato Kastritsi and Magoula. It is situated at about 100 m elevation in the northwestern foothills of the Panachaiko, 2 km southeast of Rio town centre, and adjacent to the campus of the University of Patras. Ano Kastritsi is 4 km to the southeast.

• List of settlements in Achaea