(Kash-til-a-shu) Twelfth King of the 3rd dynasty of Babylon, Burna-Buriash I'sson cassita. Its existence is confirmed by the synchronous Chronicle. Also, Kashtiliash III as father of Agum III and brother of Ulam-Buriash, that has been identified with him is mentioned in the Chronicle of the Kings of old. Kashtiliash III, which is not known, reached the throne once it had been vacant for about 15 years. On his death the Ulam-Buriash cited succeeded him.