Erateini (Greek: Ερατεινή) is a village in the southern part of Phocis, Greece.

The Greek National Road 48 (Antirrio - Nafpaktos - Delphi - Livadeia) passes through the village.

The Primary School of Erateini was established around 1930 and it was provided with a new building in 1955.

A year later, in 1980, the Erateini High School was established.

In 1995 the village was significantly affected by the Aigio earthquake.