The1934 United States Senate elections in Wyomingtook place on November 6, 1934. Incumbent Democratic SenatorJohn B. Kendrickdied on November 3, 1933, andJoseph C. O'Mahoneywas appointed by GovernorLeslie A. Milleras Kendrick's replacement. Two elections for the same Senate seat were held on the same day; one as a special election to fill the remainder of Kendrick's original six-year term, and another to select a Senator to serve the next six-year term. O'Mahoney ran for re-election in both elections. He was opposed by Republican CongressmanVincent Carter.Aided by the strong performance by the Democratic Party throughout the country in1934,and by Governor Miller'slandslide re-election,O'Mahoney handily defeated Carter to win re-election.