In Greek mythology, Oicles or Oecles (/ˈɛkliːz/; Ancient Greek: Οἰκλῆς), also Oicleus or Oecleus (/ˈɛkljuːs/; Οἰκλεύς), was the father of the seer Amphiaraus.[1] He accompanied Heracles on his campaign against Troy.[2]