Nāṣir al-Dīn Qubācha (d. 1228 CE) was a Turkic mamluk officer of the Ghurids who rose to power in Sindh after the death of Muʿizz al-Dīn Muhammad of Ghor in 1206. Initially appointed as governor of Uchch and Multan, Qubacha carved out an independent domain centered on lower Sindh and parts of southern Punjab. His rule was marked by constant struggles with rival Ghurid successors, the Delhi Sultanate under Iltutmish, and incursions from Khwarazmian forces. Though he maintained authority in Uch and Thatta for over two decades, his position weakened under repeated Delhi campaigns. In 1228, while retreating after defeat by Iltutmish, he drowned in the Indus River, bringing an end to his fragile principality. Qubacha’s career reflects the turbulent aftermath of the Ghurid collapse, when former mamluks vied for power in northern India and Sindh.