Muhammad Ayub Khan (; May 14, 1907 – 19 April 1974) was a five-star general officer and statesman, serving as the second President of Pakistan and its first military dictator from 1958 until his forced resignation in 1969. A self-appointed field marshal, the only such five-star rank in Pakistan's military history, he was appointed the first chief martial law administrator by President Iskander Mirza in 1958, a post he retained until the promulgation of a new constitution in 1962.