List of United States senators from Wyoming

Wyoming was admitted to the Union on July 10, 1890, and elects United States senators to class 1 and class 2. Its current U.S. senators are Republicans John Barrasso (serving since 2007) and Cynthia Lummis (serving since 2021). 21 people have served as a United States senator from Wyoming. Francis E. Warren was Wyoming's longest serving senator (served 1890–1893; 1895–1929).

List of senators

|- style="height:2em" | colspan=3 | Vacant | nowrap | Jul 10, 1890 –<br/>Nov 18, 1890 | After joining the Union, Wyoming did not elect its senators for four months. | rowspan=3 | 1 | rowspan=2 | rowspan=5 | 1 | After joining the Union, Wyoming did not elect its senators for four months. | nowrap | Jul 10, 1890 –<br/> Nov 15, 1890 | colspan=3 | Vacant

|- style="height:2em" ! rowspan=2 | 1 | rowspan=2 align=left | <br/>Francis E. Warren | rowspan=2 | Republican | rowspan=2 nowrap | Nov 18, 1890 –<br/>Mar 3, 1893 | rowspan=2 | Elected in 1890.Lost re-election. | rowspan=4 | Elected in 1890.Lost re-election. | rowspan=4 nowrap | Nov 15, 1890 –<br/>Mar 3, 1895 | rowspan=4 | Republican | rowspan=4 align=right | <br/>Joseph M. Carey ! rowspan=4 | 1

|- style="height:2em" |

|- style="height:2em" | colspan=3 | Vacant | nowrap | Mar 4, 1893 –<br/>Jan 23, 1895 | &nbsp; | rowspan=4 | 2 | rowspan=2

|- style="height:2em" ! rowspan=12 | 2 | rowspan=12 align=left | <br/>Clarence D. Clark | rowspan=12 | Republican | rowspan=12 nowrap | Jan 23, 1895 –<br/>Mar 3, 1917 | rowspan=3 | Elected to finish vacant term.

|- style="height:2em" | | rowspan=3 | 2 | rowspan=3 | Elected in 1895. | rowspan=18 nowrap | Mar 4, 1895 –<br/>Nov 24, 1929 | rowspan=18 | Republican | rowspan=18 align=right | <br/>Francis E. Warren ! rowspan=18 | 2

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 1899. | rowspan=3 | 3 |

|- style="height:2em" | | rowspan=3 | 3 | rowspan=3 | Re-elected in 1901.

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 1905. | rowspan=3 | 4 |

|- style="height:2em" | | rowspan=3 | 4 | rowspan=3 | Re-elected in 1907.

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 1911.Lost re-election. | rowspan=3 | 5 |

|- style="height:2em" | | rowspan=3 | 5 | rowspan=3 | Re-elected in 1913.

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|- style="height:2em" ! rowspan=13 | 3 | rowspan=13 align=left | <br/>John B. Kendrick | rowspan=13 | Democratic | rowspan=13 nowrap | Mar 4, 1917 –<br/>Nov 3, 1933 | rowspan=3 | Elected in 1916. | rowspan=3 | 6 |

|- style="height:2em" | | rowspan=3 | 6 | rowspan=3 | Re-elected in 1918.

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|- style="height:2em" | rowspan=3 | Re-elected in 1922. | rowspan=3 | 7 |

|- style="height:2em" | | rowspan=7 | 7 | rowspan=3 | Re-elected in 1924.Died.

|- style="height:2em" |

|- style="height:2em" | rowspan=7 | Re-elected in 1928.Died. | rowspan=9 | 8 | rowspan=5

|- style="height:2em" | &nbsp; | nowrap | Nov 24, 1929 –<br/>Dec 5, 1929 | colspan=3 | Vacant

|- style="height:2em" | Appointed to continue Warren's term.Retired when successor elected. | nowrap | Dec 5, 1929 –<br/>Nov 20, 1930 | | Republican | align=right | <br/>Patrick J. Sullivan ! 3

|- style="height:2em" | &nbsp; | nowrap | Nov 20, 1930 –<br/>Dec 1, 1930 | colspan=3 | Vacant

|- style="height:2em" | Elected to finish Warren's term. | rowspan=6 nowrap | Dec 1, 1930 –<br/>Jan 3, 1937 | rowspan=6 | Republican | rowspan=6 align=right | <br/>Robert D. Carey ! rowspan=6 | 4

|- style="height:2em" | | rowspan=5 | 8 | rowspan=5 | Elected to full term in 1930.Lost re-election.

|- style="height:2em" | rowspan=3

|- style="height:2em" | colspan=3 | Vacant | nowrap | Nov 3, 1933 –<br/>Dec 18, 1933 | &nbsp;

|- style="height:2em" ! rowspan=10 | 4 | rowspan=10 align=left | <br/>Joseph C. O'Mahoney | rowspan=10 | Democratic | rowspan=10 nowrap | Dec 18, 1933 –<br/>Jan 3, 1953 | Appointed to continue Kendrick's term.Elected in 1934 to finish Kendrick's term.

|- style="height:2em" | rowspan=3 | Elected in 1934. | rowspan=3 | 9 |

|- style="height:2em" | | rowspan=3 | 9 | rowspan=3 | Elected in 1936.Lost re-election. | rowspan=3 nowrap | Jan 3, 1937 –<br/>Jan 3, 1943 | rowspan=3 | Democratic | rowspan=3 align=right | <br/>Harry Schwartz ! rowspan=3 | 5

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 1940. | rowspan=3 | 10 |

|- style="height:2em" | | rowspan=3 | 10 | rowspan=3 | Elected in 1942.Lost re-election. | rowspan=3 nowrap | Jan 3, 1943 –<br/>Jan 3, 1949 | rowspan=3 | Republican | rowspan=3 align=right | <br/>Edward V. Robertson ! rowspan=3 | 6

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|- style="height:2em" | rowspan=3 | Re-elected in 1946.Lost re-election. | rowspan=3 | 11 |

|- style="height:2em" | | rowspan=6 | 11 | rowspan=3 | Elected in 1948.Died. | rowspan=3 nowrap | Jan 3, 1949 –<br/>Jun 19, 1954 | rowspan=3 | Democratic | rowspan=3 align=right | <br/>Lester C. Hunt ! rowspan=3 | 7

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|- style="height:2em" ! rowspan=6 | 5 | rowspan=6 align=left | <br/>Frank A. Barrett | rowspan=6 | Republican | rowspan=6 nowrap | Jan 3, 1953 –<br/>Jan 3, 1959 | rowspan=6 | Elected in 1952.Lost re-election. | rowspan=6 | 12 | rowspan=4

|- style="height:2em" | &nbsp; | nowrap | Jun 19, 1954 –<br/>Jun 24, 1954 | colspan=3 | Vacant

|- style="height:2em" | Appointed to continue Hunt's term.Retired when successor elected. | nowrap | Jun 24, 1954 –<br/>Nov 28, 1954 | | Republican | align=right | <br/>Edward D. Crippa ! 8

|- style="height:2em" | Elected in 1954 to finish Hunt's term. | rowspan=4 nowrap | Nov 29, 1954 –<br/>Jan 3, 1961 | rowspan=4 | Democratic | rowspan=4 align=right | <br/>Joseph C. O'Mahoney ! rowspan=4 | 9

|- style="height:2em" | | rowspan=3 | 12 | rowspan=3 | Elected to full term in 1954.Retired.

|- style="height:2em" |

|- style="height:2em" ! rowspan=10 | 6 | rowspan=10 align=left | <br/>Gale W. McGee | rowspan=10 | Democratic | rowspan=10 nowrap | Jan 3, 1959 –<br/>Jan 3, 1977 | rowspan=4 | Elected in 1958. | rowspan=4 | 13 |

|- style="height:2em" | rowspan=2 | rowspan=4 | 13 | Appointed to begin the term of Keith Thomson (R), who was elected in 1960 but died before the Congress began.Lost election to finish Thomson's term. | nowrap | Jan 3, 1961 –<br/>Nov 6, 1962 | | Democratic | align=right | <br/>Joe Hickey ! 10

|- style="height:2em" | rowspan=3 | Elected to finish Thomson's term.Retired. | rowspan=3 nowrap | Nov 7, 1962 –<br/>Jan 3, 1967 | rowspan=3 | Republican | rowspan=3 align=right | <br/>Milward Simpson ! rowspan=3 | 11

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|- style="height:2em" | rowspan=3 | Re-elected in 1964. | rowspan=3 | 14 |

|- style="height:2em" | | rowspan=3 | 14 | rowspan=3 | Elected in 1966. | rowspan=6 nowrap | Jan 3, 1967 –<br/>Dec 31, 1978 | rowspan=6 | Republican | rowspan=6 align=right | <br/>Clifford Hansen ! rowspan=6 | 12

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|- style="height:2em" | rowspan=3 | Re-elected in 1970.Lost re-election. | rowspan=3 | 15 |

|- style="height:2em" | | rowspan=4 | 15 | rowspan=3 | Re-elected in 1972.Retired and resigned early to give successor preferential seniority.

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|- style="height:2em" ! rowspan=10 | 7 | rowspan=10 align=left | <br/>Malcolm Wallop | rowspan=10 | Republican | rowspan=10 nowrap | Jan 3, 1977 –<br/>Jan 3, 1995 | rowspan=4 | Elected in 1976. | rowspan=4 | 16 | rowspan=2

|- style="height:2em" | Appointed to finish Hansen's term, having already been elected to the next term. | rowspan=10 nowrap | Jan 1, 1979 –<br/>Jan 3, 1997 | rowspan=10 | Republican | rowspan=10 align=right | <br/>Alan Simpson ! rowspan=10 | 13

|- style="height:2em" | | rowspan=3 | 16 | rowspan=3 | Elected in 1978.

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 1982. | rowspan=3 | 17 |

|- style="height:2em" | | rowspan=3 | 17 | rowspan=3 | Re-elected in 1984.

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 1988.Retired. | rowspan=3 | 18 |

|- style="height:2em" | | rowspan=3 | 18 | rowspan=3 | Re-elected in 1990.Retired.

|- style="height:2em" |

|- style="height:2em" ! rowspan=7 | 8 | rowspan=7 align=left | <br/>Craig Thomas | rowspan=7 | Republican | rowspan=7 nowrap | Jan 3, 1995 –<br/>Jun 4, 2007 | rowspan=3 | Elected in 1994. | rowspan=3 | 19 |

|- style="height:2em" | | rowspan=3 | 19 | rowspan=3 | Elected in 1996. | rowspan=14 nowrap | Jan 3, 1997 –<br/>Jan 3, 2021 | rowspan=14 | Republican | rowspan=14 align=right | <br/>Mike Enzi ! rowspan=14 | 14

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 2000. | rowspan=3 | 20 |

|- style="height:2em" | | rowspan=5 | 20 | rowspan=5 | Re-elected in 2002.

|- style="height:2em" |

|- style="height:2em" | Re-elected in 2006.Died. | rowspan=5 | 21 | rowspan=3

|- style="height:2em" | colspan=3 | Vacant | nowrap | Jun 4, 2007 –<br/>Jun 22, 2007

|- style="height:2em" ! rowspan=11 | 9 | rowspan=11 align=left | <br/>John Barrasso | rowspan=11 | Republican | rowspan=11 nowrap | Jun 22, 2007 –<br/>present | rowspan=3 | Appointed to continue Thomas's term.Elected in 2008 to finish Thomas's term.

|- style="height:2em" | | rowspan=3 | 21 | rowspan=3 | Re-elected in 2008.

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 2012. | rowspan=3 | 22 |

|- style="height:2em" | | rowspan=3 | 22 | rowspan=3 | Re-elected in 2014.Retired.

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 2018. | rowspan=3 | 23 |

|- style="height:2em" | | rowspan=3 | 23 | rowspan=3 | Elected in 2020.Retiring at the end of term. | rowspan=3 nowrap | Jan 3, 2021 –<br/>present | rowspan=3 | Republican | rowspan=3 align=right | <br/>Cynthia Lummis ! rowspan=3 | 15

|- style="height:2em" |

|- style="height:2em" | rowspan=2| Re-elected in 2024. | rowspan=2|24 |

|- style="height:2em" | | 24 | colspan=5 | To be determined in the 2026 election.

See also

• List of United States representatives from Wyoming
• List of United States Senate elections in Wyoming
• Wyoming's congressional delegations

References

External links

• Wyoming Senators, Representatives on GovTrack.us
• Senators of the 115th Congress, U.S. Senate