Sheikh Sultan III bin Muhammad Al-Qasimi (In Arabic: سلطان بن محمد القاسمي) (b. 6 July 1939 in Sharjah) is a member of the Supreme Council of the United Arab Emirates and current ruler of the Sharjah emirate. He has ruled Sharjah since 1972, apart from a six-day period between 17 and 23 June 1987, during which an attempted coup led by his brother Sheikh `Abd al-`Aziz bin Muhammad al-Qasimi took place. He is also an established historian and has published several theatrical and literary works.