| Name | Authorization beginning | End of powers |
|---|
| Mohammed Lamine Ould Ahmed | March 5, 1976 | November 4, 1982 |
| Mahfud Ali Beiba | November 4, 1982 | December 18, 1985 |
| Mohammed Lamine Ould Ahmed (2 term) | December 18, 1985 | August 16, 1988 |
| Mahfud Ali Beiba (2 term) | August 16, 1988 | September 18, 1993 |
| Bukhraya Hammudi Baiyun | September 19, 1993 | September 8, 1995 |
| Mahfud Ali Beiba (3 term) | September 8, 1995 | February 10, 1999 |
| Bukhraya Hammudi Baiyun (2 term) | February 10, 1999 | October 29, 2003 |
| Abdelkader Taleb Umar | October 29, 2003 | February 4, 2018 |
| Mohamed Wali Akayk | February 4, 2018 | Present tense |