Glenn Edward Thibeault (born October 23, 1969) is a former Canadian politician. He was Liberal member of the Legislative Assembly of Ontario from 2015 to 2018 who represented the riding of Sudbury. He served as a cabinet minister in the government of Kathleen Wynne. From 2008 to 2015, he represented the federal electoral district of Sudbury in the House of Commons of Canada as a member of the New Democratic Party.