Rizomylos (Greek: Ριζόμυλος meaning rice mill) is a village in the municipal unit of Diakopto, Achaea, Greece.

Its beach on the Gulf of Corinth, 2 km northeast of the village, is well known.

Aigio is 6 km to the northwest, and the village Nea Keryneia is adjacent to the west.

The Greek National Road 8A (Patras - Corinth) passes south of the village.