Agios Dimitrios is a village in Kymi-Aliveri Municipality, in the regional unit of Euboea, in the region of Central Greece, Greece. Agios Dimitrios lies at 23 m above sea level, in the Euboea mountains, on the island of Euboea. It has 70 inhabitants (2021). The nearest city is Kifissia, 36 km to the southwest. Beaches nearby: Sourza Bout (8.9 km), Agios Nikolaos (11 km), Koskina (11 km). Among the landmarks around are Rhamnous (12.1 km), Marathon tumuli (23 km) and Sanctuary of the Egyptian gods (24 km). Among the natural features are Kavalliani (7.2 km) and Fonias Evvoias (11.0 km).
Also written Άγιος Δημήτριος.