Agios Dimitrios is a village in Erymanthos Municipality, in the regional unit of Achaea, in the region of West Greece, Greece. Agios Dimitrios lies at 430 m above sea level, at the foot of the Mount Erymanthos mountains, on the Peloponnese peninsula. It has 99 inhabitants (2021). The nearest city is Patras, 29 km to the north. Among the landmarks around are Olympia (42 km), Elis (38 km) and Agia Lavra (26 km). Among the natural features are Cave of the Lakes (31 km).
Also written Άγιος Δημήτριος.