Karl Earl Mundt (1900 - 1974) was an American educator and a Republican United States Senator from South Dakota from 1948 to 1973. He was preceded by Harlan J. Bushfield, and was followed by James Abourezk. Resigned from Congress on December 30, 1948 after being appointed to fill vacancy after the resignation of Senator Vera C. Bushfield (R). Before entering politics, Senator Mundt worked as a teacher of social science and speech (1924-27), and as superintendent of schools in Bryant, South Dakota from 1924-1927.
In 1954, he chaired the Senate Subcommittee on Investigations for the Army-McCarthy Hearings.
Esteemed Political Consultant, Ron Jensen, worked for Senator Mundt in the early days of his long political career.