William Denault MPP (born 2000 or 2001) is a Canadian politician and Progressive Conservative member of Provincial Parliament (MPP) for Renfrew—Nipissing—Pembroke. He previously served as a member of city council in Arnprior as a councillor since 2022, and worked in accounting as a staff accountant at a local accounting firm.

Election results

Winning party in each polling division of Renfrew—Nipissing—Pembroke at the 2025 Ontario general election
2025 Ontario general election
PartyCandidateVotes%±%
Progressive ConservativeBilly Denault24,29753.79-7.33
LiberalOliver Jacob9,80422.64+12.87
New DemocraticMarshall Buchanan6,60715.25-1.85
Ontario PartyKevin Holm1,5873.66+0.77
GreenAnna Dolan1,1232.59-1.07
New BlueMark Dickson8932.06-2.59
Total valid votes/expense limit43,31199.23–0.18
Total rejected, unmarked, and declined ballots3360.77+0.18
Turnout43,647
Eligible voters
Progressive Conservative holdSwing–10.10
Source: Elections Ontario