(Ἀντίοχος), an ATHENIAN, was left by Alcibiades at Notium in command of the Athenian fleet, B. C. 407, with strict injunctions not to fight with Lysander. Antiochus was the master of Alcibiades' own ship, and his personal friend; he was a skilful seaman, but arrogant and heedless of consequences. His intimacy with Alcibiades had first arisen upon an occasion mentioned by Plutarch (Plut. Alc. 10), who tells us, that Alcibiades in one of his first appearances in the popular assembly allowed a tame quail to escape from under his cloak, which occurrence suspended the business of the assembly, till it was caught by Antiochus and given to Alcibiades.

Antiochus gave no heed to the injunctions of Alcibiades, and provoked Lysander to an engagement, in which fifteen Athenian ships were lost, and Antiochus himself was slain. This defeat was one of the main causes that led to the second banishment of Alcibiades. (Xen. Hell. 1.5.11, &c.; Diod. 13.71; Phit. Alcib. 35.)