Colonel Ely Ould Mohamed Vall (; born 1953 in Nouakchott) is a political and military figure in Mauritania. He served as the transitional military leader of Mauritania following a coup d'état in August 2005 until 19 April 2007, when he relinquished power to an elected government. Vall was a long-time ally of President Maaouya Ould Taya, and participated in the December 1984 coup that brought Taya himself to power. Prior to the 2005 coup, he had been director of the national police force, the Sûreté Nationale, since 1987. Vall is a Board member of the Arab Democracy Foundation.