Qubacha (also spelled Köten, Qutb ad-Din Qubacha, d. 1228) was a Turkic military commander of the Ghurid and later Delhi Sultanate who established himself as an independent ruler in Sindh during the early 13th century. Initially appointed as a governor under Sultan Iltutmish, he gradually acted autonomously, controlling regions such as Multan, Uch, and lower Sindh, and minting coins in his own name. His rule was marked by frequent conflicts with neighboring powers - especially Iltutmish, who ultimately defeated him. Facing siege at Bhakkar in 1228, Qubacha attempted to escape by boat on the Indus but drowned, bringing an end to his two-decade rule in the region.