Chthonius (disambiguation)

Chthonius (Greek: Χθόνιος, Khthonios, "of the earth" or "of the underworld") was the name of several figures from Greek mythology, including:
 * Chthonius (Spartoi)
 * Chthonius (Son of Aegyptus)
 * Chthonius (Son of Poseidon)
 * Chthonius (Centaur)
 * Chthonius (Gigante)