Pierre Moreau (born December 12, 1957 in Vercheres, Quebec) is a lawyer and a politician in the Canadian province of Quebec.Pierre Moreau was the Liberal MNA for the riding of Marguerite-D'Youville in the National Assembly of Quebec from 2003 to 2007. He ran again in 2008 in the nearby electorate of Châteauguay, and entered Cabinet. Moreau ran unsuccessfully for the leadership of the Quebec Liberal Party in 2013, coming second to Philippe Couillard.