The 1946 United States House of Representatives elections in South Carolina were held on November 5, 1946, to select six Representatives for two-year terms from the state of South Carolina. Five incumbents were re-elected, but Butler B. Hare of the 3rd congressional district was defeated in the Democratic primary by W. J. Bryan Dorn. The seat remained with the Democrats and the composition of the state delegation remained solely Democratic.
1st congressional district Incumbent Democratic Congressman L. Mendel Rivers of the 1st congressional district, in office since 1941, was unopposed in his bid for re-election.
General election results
| colspan=5 |Democratic hold
2nd congressional district Incumbent Democratic Congressman John J. Riley of the 2nd congressional district, in office since 1945, was unopposed in his bid for re-election.
General election results
| colspan=5 |Democratic hold
3rd congressional district Incumbent Democratic Congressman Butler B. Hare of the 3rd congressional district, in office since 1939, was defeated in the Democratic primary by W. J. Bryan Dorn who was unopposed in the general election.
Democratic primary Democratic primaryCandidateVotes% W. J. Bryan Dorn 31,164 61.6 Butler B. Hare 19,423 38.4
General election results
| colspan=5 |Democratic hold
4th congressional district Incumbent Democratic Congressman Joseph R. Bryson of the 4th congressional district, in office since 1939, defeated Charles C. Moore in the Democratic primary and was unopposed in the general election.
Democratic primary Democratic primaryCandidateVotes% Joseph R. Bryson 28,232 58.3 Charles C. Moore 20,208 41.7
General election results
| colspan=5 |Democratic hold
5th congressional district Incumbent Democratic Congressman James P. Richards of the 5th congressional district, in office since 1933, was unopposed in his bid for re-election.
General election results
| colspan=5 |Democratic hold
6th congressional district Incumbent Democratic Congressman John L. McMillan of the 6th congressional district, in office since 1939, won the Democratic primary and defeated Progressive Party candidate James E. Prioleau in the general election.
Democratic primary Democratic primaryCandidateVotes% John L. McMillan 35,494 68.4 G. Stanley Bryant 14,307 27.5 Wendell J. Holbert 2,117 4.1
General election results
| colspan=5 |Democratic hold
See also 1946 United States House of Representatives elections 1946 South Carolina gubernatorial election South Carolina's congressional districts
References
"Supplemental Report of the Secretary of State to the General Assembly of South Carolina." Reports and Resolutions of South Carolina to the General Assembly of the State of South Carolina. Volume I. Columbia, SC: 1947, pp. 5–7.