Mario Dumont is a Canadian broadcaster, columnist, and former politician best known as the founder and longtime leader of the Action démocratique du Québec.
He left provincial politics in 2008 and built a second career across Quebec television, radio, and newspapers.
Mario Dumont Quick Facts
| Detail | Information |
|---|---|
| Full Name | Mario Dumont |
| Born | May 19, 1970, Cacouna, Quebec |
| Age | 56 years |
| Nationality | Canadian |
| Profession | Broadcaster, columnist, former politician |
| Education | Bachelor’s degree in economics, Concordia University (1993) |
| Spouse | Marie-Claude Barrette |
| Children | Angela, Charles, and Juliette |
| Net Worth | $5 million |
Who is Mario Dumont?
Mario Dumont is a Quebec media personality who served in the National Assembly from 1994 until he left politics.
Since then, he has become a familiar voice on French-language radio and television. He founded the Action démocratique du Québec in January 1994 at age 23.
In 2007, he became Leader of the Official Opposition. After his party’s heavy defeat in 2008, he retired from politics and moved into media.
Today he hosts the morning show on QUB radio in Montreal.
Along with broadcasting, he writes opinion columns for the Journal de Montréal and the Journal de Québec. His wife, Marie-Claude Barrette, is also a television and podcast host.
Early Life of Mario Dumont
Mario Dumont was born on May 19, 1970, in Cacouna, Quebec. He grew up on a family farm in the Bas-Saint-Laurent region. His father, Paul-Aimé Dumont, worked as a farm producer.
His mother, Marielle Roy, worked as a teacher. Later, he attended school in Rivière-du-Loup before moving to Montreal for university.
Mario Dumont Age / Birthday
Mario Dumont is 56 years old as of 2026, born on May 19, 1970. His zodiac sign is Taurus, a sign often linked with persistence and practicality.
Even so, he still works full time, hosting a morning radio show in Montreal.
Mario Dumont Ethnicity and Nationality
Mario Dumont is Canadian and comes from the province of Quebec. He works in French and has built his entire public career in Quebec.
Voters in the Rivière-du-Loup riding, where he went to school, elected him to the National Assembly.
Mario Dumont Education
Dumont grew up on a farm and attended school in Rivière-du-Loup. After that, he moved to Montreal for university.
Concordia University awarded him a bachelor’s degree in economics in 1993.
Meanwhile, he held a political role as a student. He chaired the Quebec Liberal Party’s youth commission in 1991 and 1992.
He co-chaired the Network of Liberals for the No in 1992.
That network campaigned against the Charlottetown Accord during the 1992 referendum. It also gave him early access to Quebec’s political scene.
Mario Dumont Career
Early Career (1991-1994)
Dumont chaired the youth commission of the Quebec Liberal Party from 1991 to 1992. In 1992, he co-chaired the Network of Liberals for the No during the Charlottetown Accord referendum.
He then left the Liberals. In 1993, he founded the Youth Option Forum and joined the think tank Groupe Réflexion-Québec.
In January 1994, he and Jean Allaire founded the Action démocratique du Québec. Allaire stepped down that April, and Dumont became leader on May 11, 1994.
He was 23 years old when the party launched.
Major Positions Held (1994-2009)
Voters in Rivière-du-Loup elected Dumont to the National Assembly on September 12, 1994.
He won the seat again in 1998, 2003, 2007, and 2008. He was the only ADQ member in the Assembly from 1994 to 2002.
In the 2003 election, the ADQ polled nearly 20 percent of the vote. Then in March 2007, the party became the second-largest force in the Assembly.
As a result, Dumont served as Leader of the Official Opposition from March 26, 2007, to November 5, 2008. The ADQ finished the 2008 election with only seven members.
Following that result, Dumont retired from politics on election night. He stayed on as ADQ leader until March 6, 2009.
Current Role (2009-Present)
In 2009, Dumont joined TQS to host the daily news show Dumont 360. The network later became V, and he hosted a show called Dumont there in 2010.
By 2012, he hosted a daily show on LCN and TVA. He also wrote columns for the Journal de Montréal and the Journal de Québec.
In 2018, he joined QUB radio to host Le retour de Mario Dumont. In August 2024, QUB radio took over the 99.5 FM frequency in Montreal.
Dumont leads its morning show, and he keeps commenting on Quebec politics and the economy.
He published an opinion column on the minimum wage in the Journal de Montréal in August 2026.
Mario Dumont Political Views and Notable Coverage
Dumont promotes an autonomist vision of Quebec’s future. His party sought more powers for Quebec inside the Canadian federation.
His agenda stressed state reform, individual liberties, and economic growth.
Over the years, his positions stayed mostly conservative and rooted in identity nationalism. He also built a reputation for stirring debate with blunt opinions.
In January 2026, François Legault announced his pending resignation as CAQ leader. Dumont then repeated that he had no interest in replacing him.
Christine Fréchette won the CAQ leadership vote in April 2026.
Mario Dumont Awards and Books
The Montreal Economic Institute gave Dumont its Economic Education Prize in 2011. The prize recognized his contribution to economic education in the media.
He published his book Avoir le courage de ses convictions in 2005.
Other authors have written about him too. In 2002, Éditions Trait d’union published Mario Dumont: le pouvoir de l’image, a political biography by Julien Béliveau.
Frédéric Boily published a study of Dumont and his party in 2008.
Boily titled that book Mario Dumont et l’Action Démocratique du Québec: entre populisme et démocratie. It examines the ADQ’s rise under Dumont.
Mario Dumont Wife
Mario Dumont is married to Marie-Claude Barrette, a Quebec television and podcast host. The couple married on May 17, 1997. Barrette hosts the podcast Ouvre ton jeu.
Before television, Barrette raised funds for the Musée du Bas-Saint-Laurent. She also served as director general of the music school in Rivière-du-Loup.
In 2008, she got involved in her husband’s political career.
She joined the TVA show 2 filles le matin in 2009, first as a collaborator and later as host. Then in September 2021, she hosted a show called Marie-Claude.
In 2026, the couple traveled to Milan to support Canadian athletes at the Winter Games.
Mario Dumont Children
Mario Dumont and Marie-Claude Barrette have three children: Angela, Charles, and Juliette. They raised the family in Quebec while both built careers in public life.
Angela has a son named Henri, so Dumont is a grandfather.
During the 2007 campaign, his son and two daughters joined him on the campaign bus. That image showed how closely family stayed tied to his public life.
Recently, the couple’s son Charles married. Barrette has said that family is the most precious thing in her life. She has also said that Dumont is a loving grandfather.
Mario Dumont Net Worth
Mario Dumont’s estimated net worth is $5 million as of 2026. His income comes mainly from radio and television hosting.
He leads the morning show on QUB radio at 99.5 FM in Montreal.
He also writes opinion columns for the Journal de Montréal and the Journal de Québec. In addition, he works as a speaker.
He has worked in media since 2008. Before that, his income came from his seat in the National Assembly. He held it from 1994 until he left politics.
Mario Dumont Social Media
Dumont is active on X as @mariodumont, where he describes himself as a host and columnist on public affairs. He joined the platform in August 2009.
He posts the guest lineup for his morning show. His broadcasts also reach listeners through QUB radio, which streams online and through its app.
The platform also carries his daily podcast episodes. His opinion columns appear on the Journal de Montréal website.
Meanwhile, Marie-Claude Barrette shares family photos on her own accounts, and Dumont often appears in them.
Frequently Asked Questions
How old is Mario Dumont?
Mario Dumont is 56 years old. He was born on May 19, 1970.
What is Mario Dumont’s net worth?
His estimated net worth is $5 million as of 2026. Most of that comes from his work in broadcasting and columns.
Who is Mario Dumont married to?
Dumont has been married to host Marie-Claude Barrette since May 17, 1997.
How many children does Mario Dumont have?
He has three children named Angela, Charles, and Juliette. He also has a grandson named Henri.
Where is Mario Dumont from?
He comes from Cacouna, Quebec, in the Bas-Saint-Laurent region. He grew up on a family farm there.
What does Mario Dumont do now?
He hosts the morning show on QUB radio and writes columns for Quebecor newspapers. He left politics in 2008.
Conclusion
Few Quebec figures have led an opposition party and then become a daily broadcaster, and Mario Dumont has done both.
His morning show on QUB radio keeps him in the center of Quebec’s public debate nearly two decades after he left the National Assembly.