Simon-Pierre Diamond (born February 9, 1985 in Boucherville, Quebec) is a politician in Quebec. He represented the Marguerite-D'Youville district in the National Assembly of Quebec from 2007 to 2008 as a member of the Action démocratique du Québec.From 2004 to 2007, Diamond, a law student at Université de Montréal and a resident of Boucherville, served as President of the Youth Commission of the ADQ.