Wikipedia
Kidin-Hutran is a middle-Elamite king of the Igihalkid dynasty known for his wars with Babylonia. The Babylonian Chronicle P describes two Kidin-Hutran attacks (iv 14-22). In his first raid, he crossed Tigris, sacked Der and Nippur and deposed the Babylonian king (almost certainly an Assyrian puppet) Enlil-nadin-shumi. Later on, during the reign of Addad-Shuma-Iddina, he attacked Babylonia again, striking Marad and Isin
Kidin-Hutran is also mentioned in the so-called Berlin letter ( Pergamon Museum ,VAT17020), a neo-Babylonian copy of a letter sent by an unnamed Elamite king to the Babylonian court, stating his right to the Babylonian throne. The letter states that Kidin-Hurtan was a son of the king Untash-Napirisha and a grandson of the Babylonian king Burna-Buriash.
Since there is more than 100 years distance between the end of Burna-Buriash reign and the accession of Addad-Shuma-Iddina, some authors assume that there were more than one king with this name.