Bill Rosenberg (PC) won Algoma—Manitoulin in the February 27, 2025 Ontario general election with 41.3% of the vote, 3,854 votes (14.1 points) ahead of David Timeriski (NDP). 27,253 valid votes were counted.
Bill Rosenberg
Elected for Progressive Conservative
3,854 voteswinning margin (14.1 points)
Bill Rosenberg 41.3%David Timeriski 27.2%Reg Niganobe 14.5%Michael Mantha 11.9%
Results by candidate
Algoma—Manitoulin 2025 results by candidate
Candidate
Party
Votes
Share
Bill Rosenbergelected
Progressive Conservative
11,263
41.3%
David Timeriski
New Democratic
7,409
27.2%
Reg Niganobe
Liberal
3,948
14.5%
Michael Mantha
Independent
3,238
11.9%
Sheldon Pressey
New Blue
718
2.6%
Maria Legault
Green
677
2.5%
Source: Elections Ontario, Official Return from the Records for the 2025 general election, and 2022 electoral district boundaries.
How it compares
The 38th-closest race of 124 ridings: a margin of 3,854 votes (14.1 points).
Progressive Conservative candidates won 43% of the vote across Ontario; Bill Rosenberg took 41.3% here, 1.7 points below that.
This riding changed hands: New Democratic won it at the previous election.