In Greek mythology, Agave (; , Agaue, "illustrious") was the daughter of  Cadmus, the king and founder of the city of Thebes, Greece, and of the goddess Harmonia. Her sisters were Autonoë, Ino and Semele, and her brother was Polydorus. She married Echion, one of the five Spartoi, and was the mother of Pentheus, a king of Thebes. She also had a daughter, Epirus. She was a Maenad, a follower of Dionysus (also known as Bacchus).