1958 United States Senate election in Connecticut

The United States Senate election of 1958 in Connecticut was held on November 4, 1958. Democratic Thomas J. Dodd defeated incumbent senator William A. Purtell who ran for a second term.

This was one of ten 15 Democrats gained from the Republican Party in 1958, part of a record swing.

Candidates

 * Thomas J. Dodd, U.S. Representative from Old Lyme (Democratic)
 * Vivien Kellems, industrialist, inventor, and tax protester (Independent)
 * William A. Purtell, incumbent Senator since 1953 (Republican)