Politics & World • Politics

Catherine Fournier (politician)

Catherine Fournier is a Canadian politician from Quebec who has served as mayor of Longueuil since 2021.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

Catherine Fournier is a Canadian politician from Quebec who has served as mayor of Longueuil since 2021. She was previously a member of the National Assembly of Quebec for Marie-Victorin, first elected in 2016 at age 24. She was originally elected with the Parti Québécois and later sat as an independent sovereignist, becoming the youngest woman ever elected to the National Assembly of Quebec.

Early life and education

Catherine Fournier was born in Sainte-Julie, Quebec, in 1992. Public biographical sources identify her as trained in economics and political science.

Provincial political career

She was elected in a 2016 by-election as the MNA for Marie-Victorin and later won a full term in 2018. She became the youngest woman ever elected to Quebec's National Assembly.

Mayor of Longueuil

Fournier won the Longueuil mayoralty in 2021 and began her term that November. She was re-elected on 2 November 2025.

Political views and public profile

She has been associated with sovereigntist politics and later sat as an independent. She is also known for books, commentary, and a public profile focused on youth and civic engagement.

Key facts

She was elected mayor of Longueuil on 7 November 2021 and re-elected on 2 November 2025.
She represented Marie-Victorin in the National Assembly of Quebec from 2016 to 2021.
She became the youngest woman ever elected to the National Assembly of Quebec.
She was initially elected as a member of the Parti Québécois and later sat as an independent sovereigntist.
She was born in Sainte-Julie, Quebec, in 1992.

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Canadian context

She is a prominent Quebec municipal and provincial politician, making her especially relevant to Canadian readers interested in Quebec politics and women in public office.

Frequently asked questions

Who is Catherine Fournier?

Catherine Fournier is a Canadian politician from Quebec who has been mayor of Longueuil since 2021 and previously served as the MNA for Marie-Victorin.

How old is Catherine Fournier?

She was born on 7 April 1992, which makes her 34 years old as of 23 July 2026.

What party is Catherine Fournier?

She was first elected as a member of the Parti Québécois and later sat as an independent sovereigntist.

When was Catherine Fournier elected mayor?

She was elected mayor of Longueuil on 7 November 2021.

Is Catherine Fournier married?

Public biographical sources provided here do not confirm her marital status.

What is Catherine Fournier known for?

She is known for being the youngest woman ever elected to the National Assembly of Quebec and for becoming mayor of Longueuil in 2021.

References

Wikipedia — https://en.wikipedia.org/wiki/Catherine_Fournier_(Canadian_politician)
Supports: Birth date, provincial political career, election as mayor, party history, and distinction as youngest woman elected to Quebec's National Assembly.
Assemblée nationale du Québec — https://www.assnat.qc.ca/fr/deputes/fournier-catherine-16775/biographie.html
Supports: Birth in 1992 and official biography details.
Ville de Longueuil — https://www.longueuil.quebec/fr/mairesse
Supports: Mayor of Longueuil since 2021, first election date, re-election date, and former role as MNA.
Institut du Nouveau Monde — https://inm.qc.ca/catherine-fournier/
Supports: Former MNA, independent status since 2019, and public profile.
Ambition Québec — https://www.ambition.quebec/catherine-fournier
Supports: Education, age at first election, and authorship/public engagement.