Mummu was the son of Tiamat and Apsu in Mesopotamian mythology. His siblings were Lahmu, Lahamu and Kingu. He was the advisor of his parents and recommended they kill the younger gods who were disturbing their peace. However, Apsu is killed. Tiamat then makes Kingu her co-ruler and makes war upon the younger gods. Mummu is killed soon after Tiamat is defeated by Marduk.