Dennis Paul Drainville (born February 20, 1954) is a Canadian retired bishop, educator and politician. He was a member of the Legislative Assembly of Ontario from 1990 to 1993; later taught humanities and history for 12 years at the Cégep de la Gaspésie et des Îles and was the Anglican Bishop of the Diocese of Quebec from 2009 to 2017. He was the Green Party of Canada candidate in Gaspésie—Les Îles-de-la-Madeleine for the 2019 Canadian federal election.