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List of United States senators from Oklahoma

Oklahoma was admitted to the Union on November 16, 1907, and elects United States senators to class 2 and class 3. The state's current U.S. senators are Republican James Lankford (serving since 2015) and Republican Alan Armstrong (serving since 2026). Oklahoma's longest-serving senator was Jim Inhofe, who served from 1994 to 2023.

List of senators

|- style="height:2em" | colspan=3 | Vacant | nowrap | Nov 16, 1907 –<br/>Dec 11, 1907 | Oklahoma did not elect its senators until one month after statehood. | rowspan=4 | 1 | rowspan=2 | rowspan=2 | 1 | Oklahoma did not elect its senators until one month after statehood. | nowrap | Nov 16, 1907 –<br/>Dec 11, 1907 | colspan=3 | Vacant

|- style="height:2em" ! rowspan=9 | 1 | rowspan=9 align=left | <br/>Robert L. Owen | rowspan=9 | Democratic | rowspan=9 nowrap | Dec 11, 1907 –<br/>Mar 4, 1925 | rowspan=3 | Elected in 1907. | Elected in 1907. | rowspan=7 nowrap | Dec 11, 1907 –<br/>Mar 4, 1921 | rowspan=7 | Democratic | rowspan=7 align=right | <br/>Thomas Gore ! rowspan=7 | 1

|- style="height:2em" | | rowspan=3 | 2 | rowspan=3 | Re-elected in 1909.

|- style="height:2em" |

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

|- style="height:2em" | | rowspan=3 | 3 | rowspan=3 | Re-elected in 1914.Lost renomination.

|- style="height:2em" |

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

|- style="height:2em" | | rowspan=3 | 4 | rowspan=3 | Elected in 1920.Lost re-election. | rowspan=3 nowrap | Mar 4, 1921 –<br/>Mar 4, 1927 | rowspan=3 | Republican | rowspan=3 align=right | <br/>John W. Harreld ! rowspan=3 | 2

|- style="height:2em" |

|- style="height:2em" ! rowspan=3 | 2 | rowspan=3 align=left | <br/>William B. Pine | rowspan=3 | Republican | rowspan=3 nowrap | Mar 4, 1925 –<br/>Mar 4, 1931 | rowspan=3 | Elected in 1924.Lost re-election. | rowspan=3 | 4 |

|- style="height:2em" | | rowspan=3 | 5 | rowspan=3 | Elected in 1926. | rowspan=12 nowrap | Mar 4, 1927 –<br/>Jan 3, 1951 | rowspan=12 | Democratic | rowspan=12 align=right | <br/>Elmer Thomas ! rowspan=12 | 3

|- style="height:2em" |

|- style="height:2em" ! rowspan=3 | 3 | rowspan=3 align=left | <br/>Thomas Gore | rowspan=3 | Democratic | rowspan=3 nowrap | Mar 4, 1931 –<br/>Jan 3, 1937 | rowspan=3 | Elected in 1930.Lost renomination. | rowspan=3 | 5 |

|- style="height:2em" | | rowspan=3 | 6 | rowspan=3 | Re-elected in 1932.

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|- style="height:2em" ! rowspan=3 | 4 | rowspan=3 align=left | <br/>Joshua B. Lee | rowspan=3 | Democratic | rowspan=3 nowrap | Jan 3, 1937 –<br/>Jan 3, 1943 | rowspan=3 | Elected in 1936.Lost re-election. | rowspan=3 | 6 |

|- style="height:2em" | | rowspan=3 | 7 | rowspan=3 | Re-elected in 1938.

|- style="height:2em" |

|- style="height:2em" ! rowspan=3 | 5 | rowspan=3 align=left | <br/>Edward H. Moore | rowspan=3 | Republican | rowspan=3 nowrap | Jan 3, 1943 –<br/>Jan 3, 1949 | rowspan=3 | Elected in 1942.Retired. | rowspan=3 | 7 |

|- style="height:2em" | | rowspan=3 | 8 | rowspan=3 | Re-elected in 1944.Lost renomination.

|- style="height:2em" |

|- style="height:2em" ! rowspan=7 | 6 | rowspan=7 align=left | <br/>Robert S. Kerr | rowspan=7 | Democratic | rowspan=7 nowrap | Jan 3, 1949 –<br/>Jan 1, 1963 | rowspan=3 | Elected in 1948. | rowspan=3 | 8 |

|- style="height:2em" | | rowspan=3 | 9 | rowspan=3 | Elected in 1950. | rowspan=12 nowrap | Jan 3, 1951 –<br/>Jan 3, 1969 | rowspan=12 | Democratic | rowspan=12 align=right | <br/>Mike Monroney ! rowspan=12 | 4

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 1954. | rowspan=3 | 9 |

|- style="height:2em" | | rowspan=4 | 10 | rowspan=4 | Re-elected in 1956.

|- style="height:2em" |

|- style="height:2em" | Re-elected in 1960.Died. | rowspan=6 | 10 | rowspan=2

|- style="height:2em" | rowspan=2 colspan=3 | Vacant | rowspan=2 nowrap | Jan 1, 1963 –<br/>Jan 7, 1963 | rowspan=2 | &nbsp;

|- style="height:2em" | rowspan=3 | rowspan=5 | 11 | rowspan=5 | Re-elected in 1962.Lost re-election.

|- style="height:2em" ! 7 | align=left | <br/>J. Howard Edmondson | | Democratic | nowrap | Jan 7, 1963 –<br/>Nov 3, 1964 | Appointed to continue Kerr's termLost nomination to finish Kerr's term.

|- style="height:2em" ! rowspan=5 | 8 | rowspan=5 align=left | <br/>Fred R. Harris | rowspan=5 | Democratic | rowspan=5 nowrap | Nov 3, 1964 –<br/>Jan 3, 1973 | rowspan=2 | Elected to finish Kerr's term.

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 1966.Retired. | rowspan=3 | 11 |

|- style="height:2em" | | rowspan=3 | 12 | rowspan=3 | Elected in 1968. | rowspan=6 nowrap | Jan 3, 1969 –<br/>Jan 3, 1981 | rowspan=6 | Republican | rowspan=6 align=right | <br/>Henry Bellmon ! rowspan=6 | 5

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|- style="height:2em" ! rowspan=3 | 9 | rowspan=3 align=left | <br/>Dewey F. Bartlett | rowspan=3 | Republican | rowspan=3 nowrap | Jan 3, 1973 –<br/>Jan 3, 1979 | rowspan=3 | Elected in 1972.Retired. | rowspan=3 | 12 |

|- style="height:2em" | | rowspan=3 | 13 | rowspan=3 | Re-elected in 1974.Retired.

|- style="height:2em" |

|- style="height:2em" ! rowspan=8 | 10 | rowspan=8 align=left | <br/>David Boren | rowspan=8 | Democratic | rowspan=8 nowrap | Jan 3, 1979 –<br/>Nov 15, 1994 | rowspan=3 | Elected in 1978. | rowspan=3 | 13 |

|- style="height:2em" | | rowspan=3 | 14 | rowspan=3 | Elected in 1980. | rowspan=14 nowrap | Jan 3, 1981 –<br/>Jan 3, 2005 | rowspan=14 | Republican | rowspan=14 align=right | <br/>Don Nickles ! rowspan=14 | 6

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 1984. | rowspan=3 | 14 |

|- style="height:2em" | | rowspan=3 | 15 | rowspan=3 | Re-elected in 1986.

|- style="height:2em" |

|- style="height:2em" | rowspan=2 | Re-elected in 1990.Resigned to become President of the University of Oklahoma. | rowspan=5 | 15 |

|- style="height:2em" | rowspan=3 | rowspan=5 | 16 | rowspan=5 | Re-elected in 1992.

|- style="height:2em" | colspan=3 | Vacant | nowrap | Nov 15, 1994 –<br/>Nov 17, 1994 | &nbsp;

|- style="height:2em" ! rowspan=15 | 11 | rowspan=15 align=left | <br/>Jim Inhofe | rowspan=15 | Republican | rowspan=15 nowrap | Nov 17, 1994 –<br/>Jan 3, 2023 | rowspan=2 | Elected in 1994 to finish Boren's term.

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 1996. | rowspan=3 | 16 |

|- style="height:2em" | | rowspan=3 | 17 | rowspan=3 | Re-elected in 1998.Retired.

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 2002. | rowspan=3 | 17 |

|- style="height:2em" | | rowspan=3 | 18 | rowspan=3 | Elected in 2004. | rowspan=5 nowrap | Jan 3, 2005 –<br/>Jan 3, 2015 | rowspan=5 | Republican | rowspan=5 align=right | <br/>Tom Coburn ! rowspan=5 | 7

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 2008. | rowspan=3 | 18 |

|- style="height:2em" | | rowspan=3 | 19 | rowspan=2 | Re-elected in 2010.Resigned.

|- style="height:2em" |

|- style="height:2em" | rowspan=3 | Re-elected in 2014. | rowspan=3 | 19 | | Elected in 2014 to finish Coburn's term. | rowspan=9 nowrap | Jan 3, 2015 –<br/>present | rowspan=9 | Republican | rowspan=9 align=right | <br/>James Lankford ! rowspan=9 | 8

|- style="height:2em" | | rowspan=3 | 20 | rowspan=3 | Re-elected in 2016.

|- style="height:2em" |

|- style="height:2em" | Re-elected in 2020.Resigned. | rowspan=5 | 20 |

|- style="height:2em" ! rowspan=2 | 12 | rowspan=2 align=left | <br/>Markwayne Mullin | rowspan=2 | Republican | rowspan=2 nowrap | Jan 3, 2023 –<br/>Mar 23, 2026 | rowspan=2 | Elected in 2022 to finish Inhofe's term.Resigned to become U.S. Secretary of Homeland Security. | | rowspan=5 | 21 | rowspan=5 | Re-elected in 2022.

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

|- style="height:2em" ! 13 | align=left| <br/>Alan Armstrong | | Republican | nowrap | Mar 24, 2026 –<br/>present | Appointed to finish Inhofe's term.Retiring at the end of term and resigning early to give his elected successor preferential seniority.

|- style="height:2em" ! 14 | align=left| TBD | | TBD | nowrap | TBD | Incoming senator to be appointed to finish Inhofe's term, having already been elected to the next term.

|- style="height:2em" | rowspan=2 colspan=5 | To be determined in the 2026 election. | rowspan=2| 21 |

|- style="height:2em" | | 22 | colspan=5 | To be determined in the 2028 election.

See also

References