David Winsor Piccini is a Canadian politician, who was elected to the Legislative Assembly of Ontario in the 2018 provincial election.
He represents the riding of Northumberland—Peterborough South as a member of the Progressive Conservative Party of Ontario. Piccini is a member of the Standing Committee on Finance and Economic Affairs and serves as the Parliamentary Assistant to the Minister of Training, Colleges and Universities. In 2015, Piccini ran in Ottawa-Vanier for the Conservative Party of Canada but finished third.