Marc Tanguay

Marc Tanguay
Tanguay in October 2023
Leader of the Opposition of Quebec
Assumed office
December 19, 2025
Preceded byAndré Fortin
In office
November 10, 2022 – June 19, 2025
Preceded byDominique Anglade
Succeeded byMarwah Rizqy
Interim Leader of the Quebec Liberal Party
In office
December 19, 2025 – February 13, 2026
Preceded byPablo Rodriguez
Succeeded byCharles Milliard
In office
November 10, 2022 – June 14, 2025
Preceded byDominique Anglade
Succeeded byPablo Rodriguez
Member of the National Assembly of Quebec for LaFontaine
Assumed office
June 11, 2012
Preceded byTony Tomassi
Personal details
Born (1973-04-18) April 18, 1973
PartyQuebec Liberal
Other political
affiliations
Parti Québécois (former)
ProfessionLawyer
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Marc Tanguay MNA (born April 18, 1973) is a Canadian politician and a member of the National Assembly of Quebec for the LaFontaine electoral district.

On September 26, 2009, he was elected president of the Quebec Liberal Party. He is a lawyer by profession, and studied political science at Université Laval and law at Université de Montréal. In his youth, he was a member of the Parti Québécois.

He was elected in a by-election held on June 11, 2012, which was triggered by the resignation of Tony Tomassi on May 3, 2012. Prior to that, he was an unsuccessful Liberal candidate in the 2007 general election in Chambly electoral district, finishing third.

On November 10, 2022, he was named interim leader of the Quebec Liberal Party following the resignation of Dominique Anglade. He also serves as critic for Canadian Relations and Canadian Francophonie and Capitale-Nationale. On December 19, 2025, he was named as interim leader again after Pablo Rodriguez issued his resignation.