The 1966 United States House of Representatives elections in South Carolina were held on November 8, 1966, to select six Representatives for two-year terms from the state of South Carolina. All six incumbents were re-elected and the composition of the state delegation remained five Democrats and one Republican.
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 Republican Congressman Albert Watson of the 2nd congressional district, in office since 1963, defeated Democratic challenger Fred LeClercq.
General election results
| colspan=5 |Republican hold
3rd congressional district Incumbent Democratic Congressman William Jennings Bryan Dorn of the 3rd congressional district, in office since 1951, defeated Republican challenger John Grisso.
General election results
| colspan=5 |Democratic hold
4th congressional district Incumbent Democratic Congressman Robert T. Ashmore of the 4th congressional district, in office since 1953, was unopposed in his bid for re-election.
General election results
| colspan=5 |Democratic hold
5th congressional district Incumbent Democratic Congressman Thomas S. Gettys of the 5th congressional district, in office since 1964, 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, defeated Republican challenger Archie C. Odom.
General election results
| colspan=5 |Democratic hold
See also United States House elections, 1966 United States Senate election in South Carolina, 1966 United States Senate special election in South Carolina, 1966 South Carolina gubernatorial election, 1966 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 II. Columbia, SC: 1967, p. 17.