Steve Pinsonneault

Steve Pinsonneault MPP is a Canadian politician who was elected to the Legislative Assembly of Ontario in a by-election on May 2, 2024.^[1] He represents the electoral district of Lambton—Kent—Middlesex as a member of the Ontario Progressive Conservative Party.^[2]

Steve Pinsonneault MPP
Pinsonneault in 2024
Member of the Ontario Provincial Parliament for Lambton—Kent—Middlesex
Incumbent
Assumed office May 2, 2024
Preceded by	Monte McNaughton
Personal details
Party	Progressive Conservative

Prior to his election to the legislature, he was a municipal councillor in Chatham-Kent.^[2]

Pinsonneault was reelected in the 2025 general election. In May 2025, he stated his opposition to his own party's omnibus bill to cancel an environmental assessment of a proposed 30-fold expansion of a landfill in Dresden, Ontario in his riding. During his byelection win in 2024, he had campaigned on securing such an assessment.^[3]

Electoral record

Ontario provincial by-election, May 2, 2024: Lambton—Kent—Middlesex Resignation of Monte McNaughton
** Preliminary results — Not yet official **
Party	Candidate	Votes	%	±%
	Progressive Conservative	Steve Pinsonneault	15,649	56.85	-1.96
	Liberal	Cathy Burghardt-Jesson	6,208	22.55	+12.97
	New Democratic	Kathryn Shailer	2,973	10.80	-8.04
	New Blue	Keith Benn	1,513	5.50	-0.87
	Green	Andraena Tilgner	429	1.56	-2.42
	None of the Above	Stephen R. Campbell	360	1.31	+0.60
	Ontario Party	Cynthia Workman	310	1.13	-0.59
	Family Rights	Hilda Walton	87	0.23
Total valid votes			27,529
Total rejected ballots
Turnout				30.25	-17.08
Eligible voters			90,993
	Progressive Conservative hold		Swing		-7.46