Colonel Mohamed Khouna Ould Haidalla is a Mauritanian former military officer and politician who served as the head of state of Mauritania from 4 January 1980 to 12 December 1984.

Sidi Mohamed Ould Cheikh Abdallahi was a Mauritanian politician who was President of Mauritania from 2007 to 2008. He served in the government during the 1970s, and after a long period of absence from