Joannes Actuarius

Johannes Zacharias Actuarius (Greek: Ἰωάννης Ζαχαρίου Ἀκτουάριος; c.1275 – c. 1328), son of Zacharias (Greek: Ζαχαρίας), was a Byzantine physician in Constantinople. He is given the title of Actuarius, a dignity frequently conferred at that court upon physicians.