Jalal al-Din Mangburni (), also known as Jalal al-Din Khwarazmshah () was the last Khwarazmshah of the Anushtegin line, ruling parts of Iran and northwestern India from 1220 to 1231. He was the son and successor of Ala ad-Din Muhammad II. He is best known as a heroic fighter against the Mongol Empire and credited with halting the Mongol expansions into the the Levant, Anatolia and Baghdad by at least a decade. Jürgen Paul describes him as the mighty wall between the Mongol Empire and the West.