see also lists of incumbents
Presidents of Chad, 1960-present François Tombalbaye (changed his name to N'Garta Tombalbaye in 1973): 11 August 1960 - 13 April 1975 Félix Malloum: 15 April 1975 - 23 March 1979 Goukouni Oueddei: 23 March - 29 April 1979 Lol Mohamed Shawa: 29 April - 3 September 1979 Goukouni Oueddei: 3 September 1979 - 7 June 1982 Hissène Habré: 7 June 1982 - 1 December 1990 Idriss Déby: 2 December 1990 -