Yvon Marcoux (born March 26, 1941 in Lévis, Quebec) is a politician and administrator in Quebec, Canada. He was the Member of the National Assembly of Quebec (MNA) for the riding of Vaudreuil from 1998 to 2014, as a member of the Quebec Liberal Party. He is also a former Minister of Justice in the Jean Charest government.Marcoux studied at the Université Laval and obtained a bachelor's degree in arts as well as a licence in law in 1963 and obtained another diploma in law in 1996.