Iptar-SinorIB.TAR.Sîn[nb 1] (reading uncertain), was the 51st Assyrian king according to the Assyrian King List.[i 1] He reigned for 12 years some time during the 17th century BC.
The Assyrian King List provides a sequence of five kings with short reigns purported to be father-son successions, leading Landsberger to suggest that Libaya, Sharma-Adad I and Iptar-Sin may have been brothers of Belu-bani rather than his descendants. The list reports Iptar-Sin as the son of Sharma-Adad I. He is omitted from the list on another fragment.[i 2][2] He is called LIK.KUD-Šamaš on the Synchronistic King List[i 3] which gives his Babylonian counterpart as mDIŠ+U-EN (reading unknown), an unidentified person inserted between the reigns of Gulkišar and his son Pešgaldarameš of the Sealand Dynasty.
^J. A. Brinkman (1999). Dietz Otto Edzard (ed.). Reallexikon Der Assyriologie Und Vorderasiatischen Archäologie: Ia – Kizzuwatna. Vol. 5. Walter De Gruyter. pp. 23–24.
