Khan is the eldest son of screenwriter Salim Khan and his first wife Sushila Charak, who later adopted the name Salma Khan. Born to a Hindu mother and a Muslim father, Khan was brought up in both faiths. His paternal ancestors were the Alakozai Pashtuns from Afghanistan who immigrated to Indore, Madhya Pradesh in the mid 1800s; however, Jasim Khan in his biography of the actor states that his ancestors belonged to the Akuzai sub-tribe of the Yusufzai Pashtuns from Malakand in the Swat valley of North-West Frontier Province in British India (now in Khyber Pakhtunkhwa, Pakistan). His grandfather Abdul Rashid Khan was a Deputy Inspector General of the Indore state who was awarded Diler Jung award of the Holkar times. Khan's mother is a homemaker, whose father Baldev Singh Charak, a Dogra Rajput, comes from Jammu-Kashmir and whose mother comes from Maharashtra. He has two brothers, Arbaaz Khan and Sohail Khan; and two sisters, Alvira Khan Agnihotri, who is married to actor/director Atul Agnihotri, and an adopted sister Arpita.