Glenn 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.
On December 16, 2014, Thibeault announced that he would be resigning from the House of Commons in order to run for the provincial Ontario Liberal Party in a by-election in the provincial riding of Sudbury for a seat in the Ontario legislature after being recruited by Ontario Premier Kathleen Wynne.
His resignation became official on January 5, 2015, shortly before Wynne called the by-election.
He won the by-election on February 5, 2015 but was defeated in the general election in 2018.