Sghair Ould M'Bareck (; born 1954) is a Mauritanian politician. He was the 9th Prime Minister of Mauritania from July 6, 2003, when he was appointed by President Maaouya Ould Sid'Ahmed Taya following an attempted coup in the previous month, until August 7, 2005, when he resigned following a successful coup against Maaouya. Sghair is a Haratin. He replaced Cheikh El Avia Ould Mohamed Khouna, who came from the same part of eastern Mauritania as many of the accused 2003 coup plotters. Although the coup leaders requested on the following day that Sghair and other Government ministers remain in their posts, on August 7 he and his government resigned and the coup leaders named a new Prime minister, Sidi Mohamed Ould Boubacar, who had previously held that office from 1992 to 1996. He was one of four candidates standing in the June 2009 presidential election. He met with Interim President Ba Mamadou M'Bare in late April to submit a request for a two-month leave of absence in order to concentrate on his presidential candidacy.