From	Until	Name of Secretary-General	Nationality of Secretary-General
21 January 1961	30 April 1964	Fuad Rouhani	Iran
1 May 1964	30 April 1965	Abdul Rahman al-Bazzaz	Iraq
1 May 1965	31 December 1966	Ashraf Lutfi	Kuwait
1 January 1967	31 December 1967	Muhammad Saleh Joukhdar	Saudi Arabia
1 January 1968	31 December 1968	Francisco R. Parra	Venezuela
1 January 1969	31 December 1969	Elrich Sanger	Indonesia
1 January 1970	31 December 1970	Omar el-Badri	Libya
1 January 1971	31 December 1972	Nadim Pachachi	Iraq
1 January 1973	31 December 1974	Abderrahman Khène	Algeria
1 January 1975	31 December 1976	M.O. Feyide	Nigeria
1 January 1977	31 December 1978	Ali M. Jaidah	Qatar
1 January 1970	31 December 1981	René G. Ortiz	Ecuador
1 July 1981	30 June 1983	Marc Saturnin Nan Nguema	Gabon
1 July 1983	30 June 1988	Fadhil J. al-Chalabi	Iraq
1 July 1988	30 June 1994	Subroto	Indonesia
1 July 1994	31 December 1994	Abdallah Salem el-Badri	Libya
1 January 1995	31 December 2000	Rilwanu Lukman	Nigeria
1 January 2001	30 June 2002	Alí Rodríguez Araque	Venezuela
1 July 2002	31 December 2003	Álvaro Silva Calderón	Venezuela
1 January 2004		Purnomo Yusgiantoro	Indonesia