Amphiaraus or Amphiaraos (; Ancient Greek: Ἀμφιάραος, Ἀμφιάρεως, "very sacred") was in Greek mythology the son of Oicles, a seer, and one of the leaders of the Seven against Thebes. Amphiaraus at first refused to go with Adrastus on this expedition against Thebes as he foresaw the death of everyone who joined the expedition. His wife, Eriphyle, eventually compelled him to go.