Rob Cerjanec

Robert Cerjanec MPP is a Canadian politician who has served as a member of Provincial Parliament (MPP) since 2025. A member of the Ontario Liberal Party, he represents the riding of Ajax.^[1][2] He was previously a business consultant and served on the leadership team of the Durham District School Board.^[3]

Rob Cerjanec MPP
Cerjanec in 2023
Member of the Ontario Provincial Parliament for Ajax
Incumbent
Assumed office February 27, 2025
Preceded by	Patrice Barnes
Personal details
Born	Robert Cerjanec
Political party	Ontario Liberal
Alma mater	York University (BA) Schulich School of Business, York University (MBA)
Website	www.voterob.ca

Political career

Cerjanec was first elected in the 2025 Ontario general election, defeating incumbent Progressive Conservative MPP Patrice Barnes by a margin of 0.8% of the vote.^[1][2] Cerjanec's platform focused on "better health care, public education and an economy that creates jobs and prepares us for the future.”^[2]

Electoral history

v t e 2025 Ontario general election: Ajax
Party	Candidate	Votes	%	±%
	Liberal	Robert Cerjanec	18,499	44.96	+8.98
	Progressive Conservative	Patrice Barnes	18,168	44.16	+3.47
	New Democratic	Arthur Augustine	2,884	7.01	–9.68
	Green	Cory Feferman	866	2.10	–1.36
	New Blue	Chris Rees	413	1.00	–0.66
	Centrist	Sarah Qureshi	312	0.76	N/A
Total valid vote/expense limits			41,142	99.64	+0.19
Total rejected, unmarked, and declined ballots			148	0.36	–0.19
Turnout			41,290	41.85	+1.89
Eligible voters			98,655
	Liberal gain from Progressive Conservative		Swing		+2.76
Source: Elections Ontario[4]