1954 United States Senate election in Iowa

The 1954 United States Senate election in Iowa took place on November 2, 1954. Incumbent Democratic Senator Guy Gillette ran for re-election but was defeated in an upset by Republican U.S. Representative Thomas E. Martin.

This was the fifth consecutive election in which the incumbent lost and this seat changed parties.

Candidates

 * Guy Gillette, incumbent Senator (Democratic)
 * Thomas E. Martin, U.S. Representative from Des Moines (Republican)
 * Ernest J. Seemann, perennial candidate (Republicsons)