Guy Caron (born May 13, 1968)^[3] is a Canadian politician, who was elected the mayor of Rimouski, Quebec in the 2021 Quebec municipal elections. He was previously a member of the House of Commons of Canada from 2011 to 2019, and served as the federal House leader of the New Democratic Party from 2017 to 2019, substituting for party leader Jagmeet Singh who during this time did not hold a seat.

Caron was elected to the House of Commons of Canada in the 2011 election.^[4] He represented the electoral district of Rimouski-Neigette—Témiscouata—Les Basques as a member of the New Democratic Party (NDP). He was the NDP's critic for Finance and the Atlantic Canada Opportunities Agency, but resigned from the NDP's shadow cabinet in February 2017 to pursue leadership of the New Democratic Party of Canada.^[5]

On October 4, 2017, Jagmeet Singh, the newly elected NDP leader, appointed Caron to serve as the NDP's parliamentary leader.^[6] He relinquished this position on February 25, 2019, upon Singh's election to parliament from the riding of Burnaby South. Caron lost his seat in the 2019 Canadian federal election.

Caron was born in Rimouski, Quebec. He has a bachelor's degree in communications from the University of Ottawa in 1992, and served two terms as president of their student federation in 1992–94. He was vice-president of the board of directors of Voyages Campus/Travel Cuts, 1994. He was national president of the Canadian Federation of Students for two terms in 1994–6.^[7] He also has a master's degree in economics from Université du Québec à Montréal in 2001.^[7]

Prior to being elected, Caron was a researcher and economist with the Communications, Energy and Paperworkers Union of Canada, most recently as Director of Special Projects.^[8] He previously worked for the Council of Canadians where he was a media relations officer, then the Campaigner on Canada-U.S. Relations, and then the Healthcare Campaigner. He has also worked for the Canadian Race Relations Foundation. He is also a former journalist: he worked with radio stations CKLE and CKMN-FM, and with the newspapers Progrès-Écho and Rimouskois while studying science at the Cégep de Rimouski.^[9]

He is the author of Crossing the Line: A Citizens’ Inquiry on Canada-U.S. Relations.^[10]

Caron ran in Rimouski-Neigette—Témiscouata—Les Basques as the NDP candidate in 2004, 2006 and 2008, each time finishing a distant fourth. In 2011, however, he defeated Bloc Québecois incumbent Claude Guimond as part of the large NDP wave that swept through Quebec. He was appointed chairperson of the NDP's Quebec caucus following the election.^[11]

After the 2015 election, Caron was appointed the NDP critic for Finance, the Atlantic Canada Opportunities Agency, as well as deputy critic for Fisheries, Oceans, and the Canadian Coast Guard in the 42nd Canadian Parliament.^[12]

Caron resigned from the NDP shadow cabinet in February 2017 to stand for the leadership of the New Democratic Party to succeed Tom Mulcair.^[13] Caron stated that the two major challenges confronting Canadians are income inequality and climate change. His leadership platform included a guaranteed basic income.^[14] In the October 1, 2017, election, Caron placed fourth with 9.4% of the vote, with Jagmeet Singh winning on the first ballot.^[15] The other two contestants in the leadership election, MPs Charlie Angus and Niki Ashton, came second and third respectively. Caron lost his seat in the 2019 Canadian federal election.

In November 2020, Caron announced his campaign for Mayor of Rimouski in the following year's municipal election, hoping to succeed retiring Mayor Marc Parent.^[16] He won the election on November 7, 2021.^[17]

Caron has been married to Valerie Stansfield since 2006.^[2] They have two children.^[2] At the time of his 2011 election they lived in Gatineau, Quebec; following the election they purchased a property in Rimouski, within Caron's riding, though stayed in Aylmer while Parliament was in session.^[2]