Mohammad Rezā Shāh Pahlavi (Persian: محمدرضا شاه پهلوی, pronounced [mohæmmæd-rezɒː-ʃɒːh-e pæhlæviː]) (26 October 1919 – 27 July 1980) was the Shah of the Imperial State of Iran from 1941 until he was deposed in 1979 by the Islamic Revolution.