Iyasu III or Joshua III was nəgusä nägäst (16 February 1784 – 24 April 1788) of Ethiopia, and a member of the Solomonic dynasty. He was the son of Abeto Azequ, and the grandson of Iyasu II. He was set upon the throne by a number of high nobles, and after the generals swore their allegiance to him in the presence of the Abuna and the Ichege, Iyasu made a number of promotions foremost of which were: Qegnazmach was made Ras Betwodded, Ras governor of Gojjam and the Agaw, Balambaras Ali Dejazmach of Begemder, and Dejazmach was released from his chains and made Dajazmach of Tigray. His reign of four years was disrupted by feuds between Wolde Selassie, Ras Haile Yosadiq, and others.