Kato Zachlorou (Greek: Κάτω Ζαχλωρού) is a village and a community in eastern Achaea, Greece.

It is built on a mountain slope on the left bank of the river Vouraikos, which forms a narrow gorge.

The community consists of the villages Kato Zachlorou and Ano Zachlorou, and the Mega Spilaio monastery.

It is 11 km (7 miles) south of Diakopto, and 9 km (6 miles) northeast of Kalavryta.

The narrow gauge Diakofto–Kalavryta Railway runs through the village.