| Lise St-Denis | |
| Riding: | Saint-Maurice—Champlain |
| Parliament: | Canadian |
| Term Start: | May 2, 2011 |
| Term End: | August 4, 2015 |
| Predecessor: | Jean-Yves Laforest |
| Birth Date: | 18 April 1940 |
| Birth Place: | Montreal, Quebec, Canada |
| Successor: | François-Philippe Champagne |
| Profession: | Teacher |
| Party: | Liberal Party (2012–present) |
| Otherparty: | New Democratic Party (2008–2012) |
| Residence: | Montreal |
Lise St-Denis (born April 18, 1940) is a former Canadian politician. She was elected to the House of Commons of Canada in the 2011 election and served a single term.[1] She was elected in the electoral district of Saint-Maurice—Champlain as a member of the New Democratic Party, but crossed the floor to the Liberal Party of Canada on January 10, 2012, saying in French to explain her move: "Voters voted for Jack Layton. Jack Layton is dead."[2] [3]
Prior to being elected, St-Denis was a teacher. She has bachelor's and master's degrees in Quebec literature and education. She previously ran as the New Democratic Party's candidate in Longueuil—Pierre-Boucher in the 2008 election, losing to Jean Dorion of the Bloc Québécois.
Shortly after her election, St-Denis was diagnosed with non-Hodgkin's lymphoma.[4] She did not stand for re-election in 2015.[5]
Before joining the Liberals, St-Denis supported Thomas Mulcair as the next leader of the NDP.[6]