Spasinu Charax /spæsɨnuː tʃæræks/, or Charax Spasinu, Charax Pasinu, Charax Spasinou (Ancient Greek: Σπασίνου Χάραξ), Alexandria (Greek: Ἀλεξάνδρεια), and Antiochia in Susiana (Greek: Ἀντιόχεια τῆς Σουσιανῆς) was an ancient port at the head of the Persian Gulf, and the capital of the ancient kingdom of Characene.