Athenaeus of Cyzicus

Athenaeus of Cyzicus was an ancient Greek mathematician and geometer who was active in the 4th century BC.

Originally from Cyzicus, he moved to ancient Athens and became a student of Plato. Athenaeus of Cyzicus is mentioned by Proclus in his work "Commentaries on Euclid," where he is characterized as "exceptionally skilled in geometry." His work has not survived, nor has the title of it, which from the context must have been involved in geometrical research. During his stay in Athens, he engaged in discussions at the Academy with Plato, Menaechmus, and Dinostratus.