Irving Lahrheim (August 13, 1895 – December 4, 1967), known professionally as Bert Lahr, was an American actor, comedian and vaudevillian. He was best known for his role as the Cowardly Lion, as well as his counterpart Kansas farmworker "Zeke", in the MGM adaptation of The Wizard of Oz (1939). He was well known for his quick-witted humor and his work in burlesque and vaudeville and on Broadway.