Leo（Λέων), or LEON, Greek writers. 1. ACADEMICUS, called by Justin the historian and Suidas LEONIDES (Λεωνίδης） He was apparently a native of Heracleia in Pontus, and a disciple of Plato. He was one of the conspirators who, with their leader, Chion, in the reign of Ochus, king of Persia, B. C. 353, or, according to Orelli, B. C. 351, assassinated Clearchus, tyrant of Heracleia. [CHION, CLEARCHUS.] The greater part of the conspirators were killed on the spot by the tyrant's guards ; others were afterwards taken and put to a cruel death; but which fate befel Leo is not mentioned.
Athen. 11.506, ed. Casaubon), and Favorinus (Diog. Laert.3.37) ascribed to a certain Leo the Academic the dialogue Alcyon (Ἀλκυών).