David Daniel Beck (June 16, 1894 – December 26, 1993) was an American labor leader, and president of the International Brotherhood of Teamsters from 1952 to 1957.
He helped found the "Conference" system of organization in the Teamsters union, and shot to national prominence in 1957 by repeatedly invoking his right against self-incrimination before a United States Senate committee investigating labor racketeering.