Vincent Raymond Dunne (17 April 1889 – 17 February 1970), also known as Vincent R. Dunne or Ray Dunne, was an American Trotskyist, teamster, lumberjack, and union organizer with the Industrial Workers of the World and the International Brotherhood of Teamsters. He is notable for his leading role in the 1934 Minneapolis general strike, his conviction and imprisonment under the anti-communist Smith Act, and his membership in the Socialist Workers Party and opposition to Stalinism.