Mustafa III (; Ottoman Turkish: ????? ????? Mu??afa-yi salis; 28 January 1717 – 24 December 1773) was the Sultan of the Ottoman Empire from 1757 to 1773.
He was a son of Sultan Ahmed III (1703–30), and his consort Mihrisah Kadin.
He was succeeded by his brother Abdul Hamid I (1774–89).