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King of Assyria
King of the Old Assyrian Empire
Reign1662–1650 BC
PredecessorSharma-Adad I
FatherSharma-Adad I

Iptar-Sin or IB.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][1] 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.

He was succeeded by Bazaya, son of Belu-bani.


  1. ^ Ḫorsābād King List ii 18.
  2. ^ KAV 14.
  3. ^ Synchronistic King List A.117, Assur 14616c, i 5.


  1. ^ mIB.TAR-d30.


  1. ^ J. A. Brinkman (1999). Dietz Otto Edzard (ed.). Reallexikon Der Assyriologie Und Vorderasiatischen Archäologie: Ia – Kizzuwatna. 5. Walter De Gruyter. pp. 23–24.
Preceded by
Sharma-Adad I
King of Assyria
17th century BC
Succeeded by