Dost Mohammad Khan (Pashto: ???? ???? ????, December 23, 1793 – June 9, 1863) was the founder of the Barakzai dynasty and one of the prominent rulers of Afghanistan during the First Anglo-Afghan War.
With the decline of the Durrani dynasty, he became Emir of Afghanistan from 1826 to 1839 and then from 1843 to 1863.
An ethnic Pashtun, he was the 11th son of Sardar Payendah Khan (chief of the Barakzai tribe) who was killed in 1799 by Zaman Shah Durrani.
Dost Mohammad's grandfather was Hajji Jamal Khan.
The Musahiban family started with his older brother, Sultan Mohammad Khan, nicknamed "Telai", meaning "golden", a nickname he was given because of his love of fine clothing.