Umar Mustafa Al Muntasir () (1939 – 23 January 2001) was secretary of the General People's Committee (Prime Minister) of the Libyan Arab Jamahiriya from 1 March 1987 to 7 October 1990. He succeeded Jadallah Azzuz at-Talhi as secretary of the General People's Committee in a cabinet reshuffle. Al Muntasir also served as the foreign minister from 13 August 1992 until 16 July 2000. Umar Mustafa died of natural causes on 23 January 2001.
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