Manishtushu was the third king of the Akkadian Empire according to Old Babylonian tradition though listed as the 2nd, after Sargon, in the Ur III recension of the Sumerian King List. He was the son of Sargon of Akkad and Queen Tashlultum, brother of Enheduanna, Rimush, and Shu-Enlil, and the father of Naram-Sin. Only one year name is known.