Jafar Umar Thalib (pronunciation ; Arabic: جَعْفَر عُمَر طَالِب‎; Arabic pronunciation: [dʒaʕfar ʕumar tˤaːlib]; December 29, 1961 – August 25, 2019) was an Indonesian ulama and Islamic political figure in Indonesian politics. He was the founder and head of Laskar Jihad, an Islamic fundamentalist organization active in the country.