William "Billy" Denault (born ) is a Canadian politician and Progressive Conservative member of Provincial Parliament (MPP) for Renfrew—Nipissing—Pembroke. He previously served as a member of town council in Arnprior as a councillor since 2022, and worked in accounting as a staff accountant at a local accounting firm.
Early life and education Denault grew up in Arnprior, Ontario. As a youth he volunteered at Camp Wanago and worked for the Town of Arnprior's Recreation Department. He later received the Arnprior Youth of the Year Award.
He earned a Bachelors of Commerce, Majoring in Accounting, from Carleton University.
Municipal politics Denault was elected as a municipal councillor in Town of Arnprior during the 2022 Ontario Municipal Election.
He served on council until his election to the Legislative Assembly of Ontario in 2025.
Provincial politics Denault was appointed as the Progressive Conservative Candidate for Renfrew-Nipissing-Pembroke following the retirement of local MPP John Yakabuski. He was elected in the 2025 Ontario Provincial Election.
He serves as Parliamentary Assistant to the Minister of Tourism, Culture and Gaming. Additionally, he is a member of the Standing Committee on Government Agencies and the Standing Committee of Procedure and House Affairs.
Election results
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