| Tenure
| Incumbent
| Affiliation
| Notes
|
| Republic of Chad (République du Tchad)
|
| 11 August 1960 to 23 April 1962 | François Tombalbaye, Head of State | PPT |
|
| 23 April 1962 to 30 August 1973 | François Tombalbaye, President | Changed name to N’Garta Tombalbaye
|
| 30 August 1973 to 13 April 1975 | N’Garta Tombalbaye, President | MNRCS | (contd.); Previously named François Tombalbaye;
Died in office
|
| 13 April 1975 to 15 April 1975 | Noël Milarew Odingar , interim Head of State | Mil |
|
| 15 April 1975 to 12 May 1975 | Félix Malloum N'Gakoutou , Chairman of the Higher Military Council | Mil |
|
| 12 May 1975 to 29 August 1978 | Félix Malloum N'Gakoutou , Head of State |
|
| 29 August 1978 to 23 March 1979 | Félix Malloum N'Gakoutou , President |
|
| 23 March 1979 to 29 April 1979 | Goukouni Oueddei, Chairman of the Provisional Council of State | FROLIANT-FAP | 1st Term
|
| 29 April 1979 to 3 September 1979 | Lol Mohamed Shawa , President of Transitional Government of National Union | MPLT |
|
| 3 September 1979 to 10 November 1979 | Goukouni Oueddei, Chairman of the Provisional Administrative Committee | FROLIANT-FAP | 2nd Term
|
| 10 November 1979 to 7 June 1982 | Goukouni Oueddei, President of Transitional Government of National Union
|
| 7 June 1982 to 19 June 1982 | Hissène Habré, Chairman of the Command Council of the Armed Forces of the North | FAN |
|
| 19 June 1982 to 21 October 1982 | Hissène Habré, Chairman of the Council of State |
|
| 21 October 1982 to 1984 | Hissène Habré, President |
|
| 1984 to 1 December 1990 | UNIR | (contd.)
|
| 1984 to 2 December 1990 | Jean Alingue Bawoyeu , acting President | UDR |
|
| 2 December 1990 to 4 December 1990 | Lieutenant-General Idriss Déby, President of the Patriotic Salvation Movement | MPS |
|
| 4 December 1990 to 4 March 1991 | Lieutenant-General Idriss Déby, Head of State |
|
| 4 March 1991 to present | Lieutenant-General Idriss Déby, President |
|
| Nassour Guelendouksia Ouaido , acting President | MPS | For Déby
|