Erhart Regier (January 15, 1916 - October 22, 1976) was a Canadian politician, who represented the electoral district of Burnaby—Coquitlam in the House of Commons from 1953 to 1962. Originally elected as a Co-operative Commonwealth Federation MP in the 1953 election, he became part of the New Democratic Party (NDP) caucus in 1961.Regier resigned his House seat on August 20, 1962 so that federal NDP leader Tommy Douglas could contest a safe seat in a by-election.