Kaykaus II
| Kaykaus II | |
|---|---|
 Golden dinar with the names of the three co-sultans of Rum: Kaykaus II, Kayqubad II, and Kilij Arslan IV | |
| Sultan of Rum | |
| Reign | 1246–1262 |
| Predecessor | Kaykhusraw II |
| Successor | Kilij Arslan IV |
| Co-sultans | Kayqubad II (1249–1254) Kilij Arslan IV (1249–1254) and (1257–1262) |
| Born | 1234 |
| Died | 1279 (aged 44–45) Crimea |
| Spouse | Urbay Khatun |
| House | House of Seljuq |
| Father | Kaykhusraw II |
| Mother | Prodoulia |
| Religion | Islam Orthodox Christianity |
Kaykaus ibn Kaykhusraw or Kayka'us II (Turkish: İzzeddin Keykavus, Persian: عز الدين كيكاوس بن كيخسرو, ʿIzz ad-Dīn Kaykāwus ibn Kaykhusraw, Greek: ’Ίζ αλ-Ντίν Καϊκαούσης) was the sultan of Rum from 1246 until 1262.