In Greek mythology, Achaeus or Achaios (/əˈkiːəs/; Ancient Greek: Ἀχαιός Akhaiós) was a son of Xuthus and Creusa, and the brother of Ion as well as the grandson of Hellen.[1] According to Pausanias, he was the father of Archander and Architeles, who travelled from Phthiotis to Argos and each married daughters of Danaus.[2]