Agios Vlasios ( meaning Saint Blaise, before 1927: Καραμπάσι - Karampasi, Turkish: Karabaş black head) is a village and a community in the municipal unit of Artemida, Magnesia, Greece. Agios Vlasios is situated on the slopes of mount Pelion, 1.5 km west of Agios Georgios Nileias, 2 km northeast of Ano Lechonia and 11 km east of Volos. Its population in 2011 was 515. The name comes from the church of the village.