Philiscus of Abydos

Philiscus or Philiskos was a 4th-century BC Greek tyrant of the city of Abydos, on the Asian side of the Hellespont, and a hyparch ("vice-regent") and military commander of the Achaemenid satrap Ariobarzanes. Thebes was being feared by both Sparta and Athens, and these two cities tried to use Achaemenid influence as a mediator to resolve the conflicts in Greece, as had been the case with the Peace of Antalcidas.

The objective of Philiscus of Abydos was such to help broker a Common Peace between the Greek belligerents reunited at Delphi. Among the mercenaries whom he had recruited, Philiscus gave 2,000 to the Spartans. Both Philiscus and Ariobarzanes were made citizens of Athens, a remarkable honour suggesting important services rendered to the city-state. At one point, he is said to have held the whole Hellespontine area, and to have been "the greatest of hyparchs". In , Philiscus was succeeded by the tyrant Iphiades of Abydos.