Kalentzi is a village and a community in Achaea, West Greece, Greece. Since the 2011 local government reform it is part of the municipality Erymanthos, of which it is a municipal unit. The community consists of the villages Kalentzi, Agios Georgios, Diaselo (also known as Avrami) and Bantzaiika. The population of the village was 111 in 2001, and of the community 657. It is renowned in Greece as the ancestral home of the Papandreou political dynasty. Kalentzi is situated on the northern slope of Mount Erymanthos, about 35 km south of Patras. The residents are of turkalbanian origin.