List of United States Senators from Wyoming

Wyoming was admitted to the Union on June 10, 1890, and elects United States Senators to Class 1 and Class 2. Its current senators are Mike Enzi and John Barrasso.

Class 1

#	Senator	Party	Years	Term	Electoral history
1	Francis E. Warren	Republican	November 18, 1890 – March 4, 1893	1	Elected in 1890 [Data unknown/missing. You can help!]
Vacant			March 4, 1893 – January 23, 1895	2
2	Clarence D. Clark	Republican	January 23, 1895 – March 4, 1917		Elected to finish vacant term
				3	Re-elected in 1899
				4	Re-elected in 1905
				5	Re-elected in 1911 Lost re-election
3	John B. Kendrick	Democratic	March 4, 1917 – November 3, 1933	6	Elected in 1916
				7	Re-elected in 1922
				8	Re-elected in 1928 Died
Vacant			November 3, 1933 – January 1, 1934
4	Joseph C. O'Mahoney	Democratic	January 1, 1934 – January 3, 1953	8 (Continued)	Appointed to finish Kendrick's term
				9	Re-elected in 1934
				10	Re-elected in 1940
				11	Re-elected in 1946 Lost re-election
5	Frank A. Barrett	Republican	January 3, 1953 – January 3, 1959	12	Elected in 1952 Lost re-election
6	Gale W. McGee	Democratic	January 3, 1959 – January 3, 1977	13	Elected in 1958
				14	Re-elected in 1964
				15	Re-elected in 1970 Lost re-election
7	Malcolm Wallop	Republican	January 3, 1977 – January 3, 1995	16	Elected in 1976
				17	Re-elected in 1982
				18	Re-elected in 1988 Retired
8	Craig Thomas	Republican	January 3, 1995 – June 4, 2007	19	Elected in 1994
				20	Re-elected in 2000
				21	Re-elected in 2006 Died
Vacant			June 4, 2007 – June 22, 2007
9	John Barrasso	Republican	June 22, 2007 – Present		Appointed to continue Thomas's term Elected to finish Thomas's term

Class 2

#	Senator	Party	Years	Term	Electoral history
1	Joseph M. Carey	Republican	November 15, 1890 – March 3, 1895	1	Elected in 1890 Lost re-election
2	Francis E. Warren	Republican	March 4, 1895 – November 24, 1929	2	Elected in 1895
				3	Re-elected in 1901
				4	Re-elected in 1907
				5	Re-elected in 1913
				6	Re-elected in 1918
				7	Re-elected in 1924 Died
Vacant			November 24, 1929 – December 5, 1929
3	Patrick J. Sullivan	Republican	December 5, 1929 – November 20, 1930		Appointed to continue Warren's term Retired when successor elected
Vacant			November 20, 1930 – December 1, 1930
4	Robert D. Carey	Republican	December 1, 1930 – January 3, 1937	7 (Continued)	Elected to finish Warren's term
				8	Elected to full term in 1930 Lost re-election
5	Henry H. Schwartz	Democratic	January 3, 1937 – January 3, 1943	9	Elected in 1936 Lost re-election
6	Edward V. Robertson	Republican	January 3, 1943 – January 3, 1949	10	Elected in 1942 Lost re-election
7	Lester C. Hunt	Democratic	January 3, 1949 – June 19, 1954	11	Elected in 1948 Died
Vacant			June 19, 1954 – June 24, 1954
8	Edward D. Crippa	Republican	June 24, 1954 – November 28, 1954		Appointed to continue Hunt's term Retired when successor elected
9	Joseph C. O'Mahoney	Democratic	November 29, 1954 – January 3, 1961	11 (Continued)	Elected to finish Hunt's term
				12	Elected to full term in 1954 Retired
10	John J. Hickey	Democratic	January 3, 1961 – November 6, 1962	13	Appointed to begin Senator-elect Edwin Keith Thomson's term Lost election to finish Thompson's term
11	Milward L. Simpson	Republican	November 7, 1962 – January 3, 1967		Elected to finish Thompson's term Retired
12	Clifford P. Hansen	Republican	January 3, 1967 – December 31, 1978	14	Elected in 1966
				15	Re-elected in 1972 Retired and resigned early to give successor preferential seniority
13	Alan K. Simpson	Republican	January 1, 1979 – January 3, 1997		Appointed to finish Hansen's term, having already been elected to the next term
				16	Elected in 1978
				17	Re-elected in 1984
				18	Re-elected in 1990 Retired
14	Mike Enzi	Republican	January 3, 1997 – Present	19	Elected in 1996
				20	Re-elected in 2002
				21	Re-elected in 2008

See also

• List of United States Representatives from Wyoming
• United States congressional delegations from Wyoming