Ammatus also spelled Ammatas was a Vandal noble and military leader.
[1] He was the brother of the Vandal king Gelimer.
[1][2][3][4] He had the previous Vandal king, Hilderic, executed on the orders of his brother.
[1][2] On his brother's orders he moved to support Gelimer himself in repulsing a Byzantine invasion at Ad Decimum.
[1][2][3][4] During the battle there he was killed.