Kilij Arslan IV (Arabic: ركن الدين قلج ارسلان بن كيخسرو, Rukn al-Dĩn Kilij Arslān bin Kaykhusraw; Turkish: IV. Kılıç Arslan) was Seljuq Sultan of Rûm after the Battle of Kose Dag in 1246. For part of his tenure as sultan he ruled with his two brothers Kaykaus II and Kayqubad II. He was executed in 1266 by the Pervane Mu‘in al-Din Suleyman.
| Preceded by Kaykhusraw II |
Sultan of Rüm 1248–1265 |
Succeeded by Kaykhusraw III |
