In Greek mythology, Iasus (Ancient Greek: Ἴασος) or Iasius (Ancient Greek: Ἰάσιος) was the name of several individuals:
Iasus, king of Argos. His genealogy is confused; according to different sources, he was:
Son of Phoroneus, brother of Agenor and Pelasgus
Son of Argus and either Evadne or Peitho
Son of Argus Panoptes and Ismene, daughter of Asopus; possible father of Io
Son of Io
Son of Triopas and again brother of Pelasgus and Agenor; successor to Agenor on the throne; possibly the father of Io by Leucane
Iasus (Iasius), father of Atalanta by Clymene, daughter of Minyas; he was the son of King Lycurgus of Arcadia by either Eurynome or Cleophyle. His brothers were Ancaeus, Epochus and Amphidamas.
Iasus (Iasius), one of the Dactyli or Curetes.
Iasius, son of Eleuther and father of Chaeresilaus.
Iasus, son of Sphelus (himself son of Bucolus), leader of the Athenians, was killed by Aeneas in the Trojan War.
Iasus, king of Cyprus, father of Dmetor. In the Odyssey, he appears in a story told (and made up) by Odysseus.
Iasus, father of Palinurus and Iapis.
Iasus, father of Phaedimus. His son was killed by Amyntas in the battle of Seven Against Thebes.
Iasus, father of Nepeia, who married King Olympus and gave her name to the plain of Nepeia near Cyzicus.
Iasus (Iasius), possible father of Amphion.
Iasius, winner of the horse-racing contest at the Olympic games held by Heracles.
Iasius, same as Iasion.
