Barak Sultan (Kazakh: Барақ Сұлтан, Baraq Sūltan; ?–1750) was a descendant of Genghis Khan and a member of the last House of Genghis Khan in the Kazakh Khanate (1221–1847).
He is a son of Tursun Khan and great-grandfather of Alikhan Bukeikhanov.
It was revenge for Abulkhair Khan's pro-Russian policy and the last point was the alleged robbery of a caravan laden with gifts from Barak Sultan to the ruler of the Khanate of Khiva during attacks by Abulkhair Khan against the Karakalpaks, who were also under Barak Sultan's rule.
Barak Sultan and his eldest son had been poisoned by a pro-Russian agent from Middle Juz in 1750.
The death of Barak Sultan opened opportunities to expand Russian Empire over the Kazakh Steppe.