Guy Chevrette (born January 10, 1940 in Saint-Come, Quebec) served as Parti Québécois leader of the Opposition in the National Assembly of Quebec, Canada, from 1987 to 1989. He was the MNA for the riding of Joliette-Montcalm from 1976 to 1981 and Joliette from 1981 to 2002.When former Premier Pierre-Marc Johnson quit politics in 1987 after losing the 1985 election, Chevrette became Leader of the Opposition.