Isabelle Morin (born February 14, 1985) is a Canadian politician, who represented the Quebec riding of Notre-Dame-de-Grâce—Lachine in the House of Commons of Canada under the banner of the New Democratic Party from May 2011 to November 2015. She defeated the local long-time liberal MP Marlene Jennings by more than 4,000 votes in the 2011 federal election.