Agios Dimitrios is a village in Monemvasia Municipality, in the regional unit of Laconia Prefecture, in the region of Peloponnese, Greece. Agios Dimitrios lies 0.1 km from the Parnon mountains. It has 217 inhabitants (2021). The nearest city is Kalamata, 83 km to the northwest. Beaches nearby: Charachia (6.7 km), Pyla (7 km), Pori (8.3 km). Among the landmarks around are Epidaurus Limera (9.1 km), Asopus (8.3 km) and Zarax (17.1 km). Among the natural features are Kastania Cave (24 km).

Also written Άγιος Δημήτριος.