1954 United States Senate elections in Wyoming

← 1948 November 2, 1954 1960 →

Nominee Joseph C. O'Mahoney William Henry Harrison III Party Democratic Republican Popular vote 57,845 54,407 Percentage 51.53% 48.47%

County results O'Mahoney:      50–60%      60–70%      70–80% Harrison:      50–60%      60–70%

U.S. senator before election Edward D. Crippa Republican Elected U.S. Senator Joseph C. O'Mahoney Democratic

Elections in Wyoming
Federal government Presidential elections 1892 1896 1900 1904 1908 1912 1916 1920 1924 1928 1932 1936 1940 1944 1948 1952 1956 1960 1964 1968 1972 1976 1980 1984 1988 1992 1996 2000 2004 2008 2012 2016 2020 2024 Presidential caucuses Democratic 2004 2008 2012 2016 2020 2024 Republican 2008 2012 2016 2024 U.S. Senate elections 1890 1895 1895 sp 1899 1901 1905 1907 1911 1913 1916 1918 1922 1924 1928 1930 1930 sp 1934 1934 sp 1936 1940 1942 1946 1948 1952 1954 1954 sp 1958 1960 1962 sp 1964 1966 1970 1972 1976 1978 1982 1984 1988 1990 1994 1996 2000 2002 2006 2008 2008 sp 2012 2014 2018 2020 2024 2026 U.S. House of Representatives elections 1890 1892 1894 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1989 sp 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 2024
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v t e

The 1954 United States Senate elections in Wyoming took place on November 2, 1954. Incumbent Democratic senator Lester C. Hunt, who decided not to be a candidate for re-election, committed suicide by firearm on June 19, 1954, and Republican Governor Clifford J. Rogers appointed former state highway commissioner Edward D. Crippa to replace him. Two elections for the Senate seat were held on the same day; one as a special election to fill the remainder of Hunt's original six-year term, and another to select a senator to serve the next six-year term. Senator Crippa did not run for re-election.

Crippa did not run for re-election; instead, Congressman William Henry Harrison III won a contested Republican primary and advanced to the general election, where he faced former senator Joseph C. O'Mahoney, the Democratic nominee. In the midst of a largely neutral political environment—Democrats gained a handful of seats in Congress nationwide, which enabled them to flip the Senate, while Republican Milward Simpson narrowly won the gubernatorial election—O'Mahoney narrowly defeated Harrison to return to the Senate.

As of 2023, this is the last time Democrats won Wyoming's Class 2 Senate seat.

• Joseph C. O'Mahoney, former U.S. Senator
• Carl A. Johnson (only filed for the special election)

• William Henry Harrison III, U.S. Congressman from Wyoming's at-large congressional district
• Sam C. Hyatt, former president of the American National Cattlemen's Association^[2]
• Ewing T. Kerr, former chairman of the Republican Party of Wyoming^[3]
• William J. Taber, auto dealer^[4]