| Shams ud-Din Kayumars | |
| Succession: | 11th Sultan of Delhi |
| Reign: | 1 February 1290 – 13 June 1290 |
| Predecessor: | Muiz ud-Din Qaiqabad |
| Successor: | Jalal ud-Din Firuz Khalji |
| Dynasty: | House of Balban |
| Father: | Muiz ud-Din Qaiqabad |
| Death Date: | 13 June 1290 (aged c. 4–5) |
| Death Place: | Delhi, Delhi Sultanate |
| Religion: | Islam |
Shams ud-Din Kayumars (fa|{{nq|شمس الدین کیومرث; c. 1285 – 13 June 1290) was the eleventh sultan of Delhi, and a son of Muiz ud-Din Qaiqabad (a grandson of Balban).
His father Muiz ud din Qaiqabad was murdered by a Khalji noble, Jalal ud-Din Firuz Khalji, during the Khalji Revolution. Jalal ud-Din assumed the throne after murdering Kayumars, ending the Mamluk dynasty and starting the Khalji dynasty.[1] By that time Qaiqabad was struck down with paralysis and the Turkic nobles had raised his three-year-old son Kayumars to the throne as the Sultan.