Iyo Kobat was the penultimate Ixian Ambassador to Arrakis during the reign of the God Emperor Leto II.
Kobat took the position of Ambassador after his predecessor Malky was recalled to Ix. In 13728 AG, after supplying a lasgun to Duncan Idaho which he used in a failed assassination attempt of the God Emperor, Leto ordered him to leave Arrakis, telling him to carry a message to Ix that the God Emperor knew about the agreement between Ix and the Spacing Guild. Leto also gave Kobat a private message for his masters that he wanted an extension for his cart, and that they were to send him a large supply of ridulian crystal paper.
Shortly after, he met with the rebellion against Leto led by Siona Atreides after being found by rebel Topri, and told to bring the volumes of Stolen Journals they had retrieved in a deadly excursion to Leto's Sareer back to Ix to translate.