Qutb-ud-Din Khan Kokah (13 August 1569 - 20 May 1607) was the first Mughal subahdar (provincial governor) of Bengal Subah (Mughal province of Bengal) during the reign of emperor Jahangir. He was appointed governor of Bengal on 2 September 1606 and died in office on 20 May 1607.
Qutb-ud-Din Khan Kokah's original name was Shaikh Khubu. His father was a Mughal courtier in the court of emperor Akbar and his mother was daughter of Shaikh Salim Chishti. He was the Kokah (foster brother) of emperor Jahangir. The title of Qutb-ud-Din Khan was conferred upon him by Prince Salim (Jahangir) during his rebellion against his father Akbar. He was also appointed subahdar of Bihar by prince Salim during his rebellion.
Qutb-ud-Din Khan Kokah was appointed the governor of Bengal in 1606. Eight months later, he led the Mughal forces in a battle against Sher Afghan Quli Khan, the Faujdar of Bardhaman. Qutb-ud-Din Khan Kokah was defeated and killed in that battle.
Qutbuddin Khan Kokah had two sons. His first son, Saaduddin Khan received the title Saaduddin Siddiky and was granted by emperor Jahangir three jagirs called Amenabad, Talebabad and Chandrapratap in Gazipur district of Bangladesh, formerly East Bengal. This became the Bangladesh branch of his family. His descendants in Bangladesh include Chowdhury Kazemuddin Ahmed Siddiky, the co-founder of the Assam Bengal Muslim League and co-founder of the University of Dhaka, Justice Badruddin Ahmed Siddiky,Chowdhury Tanbir Ahmed Siddiky, the Commerce Minister of Bangladesh (1979–81) and Chowdhury Irad Ahmed Siddiky, a candidate for the Mayor of Dhaka in 2015.