Sevastos Leontiadis (Greek: Σεβαστός Λεοντιάδης) was most known as the director of the Kastoria school between 1726 and 1728.
He was born in Kastoria on 1690. He was student of Methodios Anthrakites in Siatista, Kastoria and Ioannina. He spent some time in Italy for studies. He was the director of the Kastoria school (1726–1728) and later taught in Kozani (1728–1733) and finally at the New Academy of Moschopolis. He died in 1765.
- Amantou, K. Μακεδονικά Σημειώματα (Makedonika Semeiomata Supplement (in Greek), 1932