Jahan Shah bin Tughril

Rukn al-Din Jahanshah bin Tughril (r. 1225–1230) was a Turkoman king of the "Seljuqs of Erzurum". He was a son of Tughril ibn Kılıç Arslan II, also ruler of Erzurum (r. 1202–1225). Jahanshah was a grandson of Kilij Arslan II, who had partitioned his kingdom in Anatolia between his numerous sons.

Before the 1201–1202 conquest of Erzurum by Suleiman II of Rûm, son of Kilij Arslan II, the region of Erzurum had been ruled by a local Turkoman dynasty, the Saltukids from 1071 until 1202. During the 30 years after this conquest, Erzurum was ruled by the two Seljuq princes Tughril ibn Kılıç Arslan II and Jahan Shah bin Tughril as an appanage.

He also allied with the Khwarizmian Shah Jalal al-Din, until he was defeated at the Battle of Yassı Çimen in 1230.

The region of Erzurum was incorporated into the Sultanate of Kay Qubadh I in 1230.