| width="18%"|Term | width="40%"|Incumbent | width="10%"|Affiliation | width="20%"|Notes |
| olspan="4"|Republic of Chad ('Rpublique du Tchad') |
| small>14 May 1957 to 26 July 1958 | Gabriel Lisette, Vice President of the Government Council | rowspan="3"|PPT | |
| small>26 July 1958 to 10 December 1958 | Gabriel Lisette, President of the Government Council | |
| small>10 December 1958 to 11 February 1959 | Gabriel Lisette, President of the Provisional Government | |
| small>11 February 1959 to 12 March 1959 | Gontchom Sahoulba, President of the Provisional Government | GIRT | |
| small>12 March 1959 to 26 March 1959 | Ahmad Koulamallah, President of the Provisional Government | n-p | |
| small>26 March 1959 to 16 June 1959 | Franois Tombalbaye, President of the Provisional Government | rowspan="2"|PPT | |
| small>16 June 1959 to 30 August 1973 | Franois Tombalbaye, Prime Minister | Changed name to N’Garta Tombalbaye |
| small>30 August 1973 to 13 April 1975 | N'Garta Tombalbaye, Prime Minister | MNRCS | (contd.); Previously named Franois Tombalbaye;
Died in office |
| small>15 April 1975 to 29 August 1978 | Flix Malloum N’Gakoutou, Prime Minister | Mil | |
| small>29 August 1978 to 23 March 1979 | Hissne Habr, Prime Minister | FROLIANT-FAN | |
| small>19 May 1982 to 19 June 1982 | Djidingar Dono Ngardoum, Prime Minister | RUDT | |
| small>4 March 1991 to 20 May 1992 | Jean Alingue Bawoyeu, Prime Minister | UDR | |
| small>20 May 1992 to 7 April 1993 | Joseph Yodoyman, Prime Minister | ANDR | |
| small>7 April 1993 to 6 November 1993 | Fidle Moungar, Prime Minister | ACTUS | |
| small>6 November 1993 to 8 April 1995 | Delwa Kassire Koumakoye, Prime Minister | MPS | |
| small>8 April 1995 to 17 May 1997 | Koibla Djimasta, Prime Minister | MPS | |
| small>17 May 1997 to 13 December 1999 | Nassour Guelendouksia Ouaido, Prime Minister | MPS | |
| small>13 December 1999 to 12 June 2002 | Nagoum Yamassoum, Prime Minister | MPS | |
| small>12 June 2002 to 24 June 2003 | Haroun Kabadi, Prime Minister | MPS | |
| small>24 June 2003 to present | Moussa Faki, Prime Minister | MPS | |