Muhammad Ayub Khan (; 14 May 1907 –19 April 1974), widely known as Ayub Khan, was the first native four-star general and the only (self-appointed) Field Marshal of Pakistan Army. He was the first military dictator and also the self-appointed second President of Pakistan who assumed power in the 1958 Pakistani coup d'état, serving in office until his forced resignation amid a popular uprising in 1969.