Ieng Thirith (née Khieu; ; 10 March 1932 – 22 August 2015) was an influential figure in the Khmer Rouge, although she was neither a member of the Khmer Rouge Standing Committee nor of the Central Committee. Ieng Thirith was the wife of Ieng Sary, who was Minister of Foreign Affairs of Democratic Kampuchea's Khmer Rouge regime. She served as Minister of Social Affairs from October 1975 until the fall of the Khmer Rouge in 1979.