Agios Vasileios is a village in the municipal unit of Tenea in Corinthia, Greece.It is located about 25 km to the south of the city of Corinth, approximately halfway along the old national road to Argos (GR-7). It lies at the foot of the Dafnias mountains and the Chouni Pass.
Archaeological excavations prove that the area around Ayios Vasilios has been settled since pre-historical times. Zygouries, west of Ayios Vasilios, was excavated by the American archaeologist Carl William Blegen in the 1920s. He found a Bronze Age settlement dating from approximately 1300 BC to 1320 BC. Sadly, agricultural work and forestry on Zygouries hill has destroyed one of the most important pre-historical settlements of the Balkans.