The Supreme Leader of Afghanistan, officially the Supreme Leader of the Islamic Emirate of Afghanistan and also styled by his religious title Amir al-Mu'minin, is the absolute ruler, head of state, and national religious leader of Afghanistan, as well as the leader of the Taliban. The supreme leader wields unlimited authority and is the ultimate source of all law.

Muhammad Omar was an Afghan militant leader and founder of the Taliban. During the Third Afghan Civil War, the Taliban fought the Northern Alliance and took control of most of the country, establishing the First Islamic Emirate for which Omar began to serve as Supreme Leader in 1996. Shortly after al-Qaeda carried out the September 11 attacks, the Taliban government was toppled by an American invasion of Afghanistan, prompting Omar to go into hiding. He successfully evaded capture by the American-led coalition before dying in 2013 from tuberculosis.