Alex Boissonneault is a Canadian politician, journalist and radio host from the Parti Québécois who was elected to the National Assembly of Quebec from Arthabaska in a 2025 by-election. He defeated Conservative Party of Quebec leader Éric Duhaime and flipped a Coalition Avenir Québec seat.

He previously hosted Première Heure, a radio show on Ici Radio-Canada Première. During the 3rd Summit of the Americas, Boissonneault was arrested and convicted of plotting to penetrate the secure perimeter, serving in pretrial detention 41 days, but was subsequently sentenced to community service. He regretted his actions and apologized during the 2025 campaign.

Electoral record

Quebec provincial by-election, August 11, 2025: Arthabaska Resignation of Eric Lefebvre
** Preliminary results — Not yet official **
PartyCandidateVotes%±%
Parti QuébécoisAlex Boissonneault17,32746.37+36.36
ConservativeÉric Duhaime13,08135.01+10.32
LiberalChantale Marchand3,4819.32+5.56
Coalition Avenir QuébecKeven Brasseur2,6937.21-44.54
Québec solidairePascale Fortin5481.47-7.76
Climat QuébecTrystan Martel960.26-0.31
Union NationaleEric Simard550.15
Équipe AutonomisteLouis Chandonnet310.08
IndependentDenis Gagné290.08
IndependentArpad Nagy240.06
Total valid votes37,36598.95
Total rejected ballots3981.05-0.51
Turnout37,76359.98-14.12
Eligible voters62,960+1.35
Parti Québécois gain from Coalition Avenir QuébecSwing+40.45