This is a list of United States senators from Kentucky. The state's senators belong to class 2 and class 3. Kentucky is currently represented in the U.S. Senate by Republicans Mitch McConnell (serving since 1985) and Rand Paul (serving since 2011). Currently, on his seventh term in office, McConnell is Kentucky's longest-serving senator.
|- style="height:2em" | colspan=3 | Vacant | nowrap | June 1, 1792 âÂÂ<br/>June 18, 1792 | Kentucky elected its senators a couple of weeks after statehood. | rowspan=2 | 1 | rowspan=2 | rowspan=3 | 1 | Kentucky elected its senators a couple of weeks after statehood. | nowrap | June 1, 1792 âÂÂ<br/>June 18, 1792 | colspan=3 | Vacant
|- style="height:2em" ! rowspan=7 | 1 | rowspan=7 align=left | <br/>John Brown<br /> | rowspan=2 | Anti-<br/>Admin. | rowspan=7 nowrap | June 18, 1792 âÂÂ<br/>March 3, 1805 | Elected in 1792. | rowspan=2 | Elected in 1792. | rowspan=2 nowrap | June 18, 1792 âÂÂ<br/>March 3, 1795 | rowspan=2 | Anti-<br>Admin. | rowspan=2 align=right | <br/>John Edwards<br /> ! rowspan=2 | 1
|- style="height:2em" | rowspan=3 | Re-elected in 1792. | rowspan=3 | 2 |
|- style="height:2em" | rowspan=5 | Democratic-<br/>Republican | | rowspan=3 | 2 | rowspan=3 | Elected in 1794.Lost re-election. | rowspan=3 nowrap | March 4, 1795 âÂÂ<br/>March 3, 1801 | rowspan=3 | Federalist | rowspan=3 align=right | <br/>Humphrey Marshall<br /> ! rowspan=3 | 2
|- style="height:2em" |
|- style="height:2em" | rowspan=3 | Re-elected in 1798.Lost re-election. | rowspan=3 | 3 |
|- style="height:2em" | | rowspan=6 | 3 | rowspan=3 | Elected in 1800.Resigned to become U.S. Attorney General. | rowspan=3 nowrap | March 4, 1801 âÂÂ<br/>August 7, 1805 | rowspan=3 | Democratic-<br/>Republican | rowspan=3 align=right | <br/>John Breckinridge<br /> ! rowspan=3 | 3
|- style="height:2em" |
|- style="height:2em" ! rowspan=6 | 2 | rowspan=6 align=left | <br/>Buckner Thruston<br /> | rowspan=6 | Democratic-<br/>Republican | rowspan=6 nowrap | March 4, 1805 âÂÂ<br/>December 18, 1809 | rowspan=6 | Elected in 1804.Resigned to become judge of the U.S. Circuit Court. | rowspan=8 | 4 | rowspan=4
|- style="height:2em" | | nowrap | August 7, 1805 âÂÂ<br/>November 8, 1805 | colspan=3 | Vacant
|- style="height:2em" | Elected to finish Breckinridge's term.Lost re-election and resigned because of participation in the Burr conspiracy. | nowrap | November 8, 1805 âÂÂ<br/>November 18, 1806 | | Democratic-<br/>Republican | align=right | <br/>John Adair<br /> ! 4
|- style="height:2em" | Elected to finish Adair's term, despite not meeting the constitutional age minimum.Retired. | nowrap | November 19, 1806 âÂÂ<br/>March 3, 1807 | | Democratic-<br/>Republican | align=right | <br/>Henry Clay<br /> ! 5
|- style="height:2em" | | rowspan=5 | 4 | rowspan=5 | Elected in 1806.Retired. | rowspan=5 nowrap | March 4, 1807 âÂÂ<br/>March 3, 1813 | rowspan=5 | Democratic-<br/>Republican | rowspan=5 align=right | <br/>John Pope<br /> ! rowspan=5 | 6
|- style="height:2em" | rowspan=3
|- style="height:2em" | colspan=3 | Vacant | nowrap | December 18, 1809 âÂÂ<br/>January 10, 1810 |
|- style="height:2em" ! 3 | align=left | <br/>Henry Clay<br /> | | Democratic-<br/>Republican | nowrap | January 10, 1810 âÂÂ<br/>March 3, 1811 | Appointed to finish Thruston's term.Retired.
|- style="height:2em" ! rowspan=2 | 4 | rowspan=2 align=left | <br/>George Bibb<br /> | rowspan=2 | Democratic-<br/>Republican | rowspan=2 nowrap | March 4, 1811 âÂÂ<br/>August 23, 1814 | rowspan=2 | Elected in 1811.Resigned to return to private practice. | rowspan=10 | 5 |
|- style="height:2em" | rowspan=6 | rowspan=10 | 5 | rowspan=4 | Elected in 1813.Resigned. | rowspan=4 nowrap | March 4, 1813 âÂÂ<br/>December 24, 1814 | rowspan=4 | Democratic-Republican | rowspan=4 align=right | <br/>Jesse Bledsoe<br /> ! rowspan=4 | 7
|- style="height:2em" | colspan=3 | Vacant | nowrap | August 23, 1814 âÂÂ<br/>August 30, 1814 |
|- style="height:2em" ! 5 | align=left | George Walker<br /> | | Democratic-<br/>Republican | nowrap | August 30, 1814 âÂÂ<br/>February 2, 1815 | Appointed to continue Bibb's term.Successor qualified.
|- style="height:2em" ! rowspan=4 | 6 | rowspan=4 align=left | <br/>William Barry<br /> | rowspan=4 | Democratic-<br/>Republican | rowspan=4 nowrap | February 2, 1815 âÂÂ<br/>May 1, 1816 | rowspan=4 | Elected to finish Bibb's term.Resigned to become judge of the Kentucky Circuit Court.
|- style="height:2em" | | nowrap | December 24, 1814 âÂÂ<br/>February 2, 1815 | colspan=3 | Vacant
|- style="height:2em" | rowspan=5 | Elected in 1815 to finish Bledsoe's term.Retired or lost re-election. | rowspan=5 nowrap | February 2, 1815 âÂÂ<br/>March 3, 1819 | rowspan=5 | Democratic-Republican | rowspan=5 align=right | <br/>Isham Talbot<br /> ! rowspan=5 | 8
|- style="height:2em" | rowspan=3
|- style="height:2em" | colspan=3 | Vacant | nowrap | May 1, 1816 âÂÂ<br/>November 3, 1816 |
|- style="height:2em" ! 7 | align=left | <br/>Martin Hardin<br /> | | Democratic-Republican | nowrap | November 3, 1816 âÂÂ<br/>March 3, 1817 | Appointed to continue Bibb's term.Elected in 1816 to finish Bibb's termRetired.
|- style="height:2em" ! 8 | align=left | <br/>John J. Crittenden<br /> | | Democratic-<br/>Republican | nowrap | March 4, 1817 âÂÂ<br/>March 3, 1819 | Elected in 1816.Resigned to return to private practice. | rowspan=6 | 6 |
|- style="height:2em" | colspan=3 | Vacant | nowrap | March 3, 1819 âÂÂ<br/>December 10, 1819 | | rowspan=4 | rowspan=6 | 6 | rowspan=2 | Elected in 1818.Resigned to run for governor. | rowspan=2 nowrap | March 4, 1819 âÂÂ<br/>May 28, 1820 | rowspan=2 | Democratic-Republican | rowspan=2 align=right | <br/>William Logan<br /> ! rowspan=2 | 9
|- style="height:2em" ! rowspan=7 | 9 | rowspan=7 align=left | <br/>Richard Mentor Johnson<br /> | rowspan=5 | Democratic-<br/>Republican | rowspan=7 nowrap | December 10, 1819 âÂÂ<br/>March 3, 1829 | rowspan=4 | Elected to finish Crittenden's term.
|- style="height:2em" | | nowrap | May 28, 1820 âÂÂ<br/>October 19, 1820 | colspan=3 | Vacant
|- style="height:2em" | rowspan=3 | Elected to finish Logan's term.Retired or lost re-election. | rowspan=3 nowrap | October 19, 1820âÂÂ<br/>March 3, 1825 | rowspan=3 | Democratic-Republican | rowspan=3 align=right | <br/>Isham Talbot<br /> ! rowspan=3 | 10
|- style="height:2em" |
|- style="height:2em" | rowspan=3 | Re-elected in 1823.Lost re-election. | rowspan=3 | 7 |
|- style="height:2em" | rowspan=2 | Jacksonian | | rowspan=3 | 7 | rowspan=3 | Election year unknown.Retired or lost re-election. | rowspan=3 nowrap | March 4, 1825 âÂÂ<br/>March 3, 1831 | rowspan=3 | Jacksonian | rowspan=3 align=right | <br/>John Rowan<br /> ! rowspan=3 | 11
|- style="height:2em" |
|- style="height:2em" ! rowspan=4 | 10 | rowspan=4 align=left | <br/>George Bibb<br /> | rowspan=4 | Jacksonian | rowspan=4 nowrap | March 4, 1829 âÂÂ<br/>March 3, 1835 | rowspan=4 | Elected in 1829.Retired or lost re-election. | rowspan=4 | 8 |
|- style="height:2em" | rowspan=2 | rowspan=4 | 8 | | nowrap | March 4, 1831 âÂÂ<br/>November 10, 1831 | colspan=3 | Vacant
|- style="height:2em" | rowspan=3 | Elected late in 1831. | rowspan=6 nowrap | November 10, 1831 âÂÂ<br/>March 31, 1842 | rowspan=3 | National<br/>Republican | rowspan=6 align=right | <br/>Henry Clay<br /> ! rowspan=6 | 12
|- style="height:2em" |
|- style="height:2em" ! rowspan=3 | 11 | rowspan=3 align=left | <br/>John J. Crittenden<br /> | | National<br/>Republican | rowspan=3 nowrap | March 4, 1835 âÂÂ<br/>March 3, 1841 | rowspan=3 | Elected in 1835.Retired. | rowspan=3 | 9 |
|- style="height:2em" | rowspan=2 | Whig | | rowspan=4 | 9 | rowspan=3 | Re-elected in 1836.Resigned. | rowspan=3 | Whig
|- style="height:2em" |
|- style="height:2em" ! rowspan=4 | 12 | rowspan=4 align=left | <br/>James T. Morehead<br /> | rowspan=4 | Whig | rowspan=4 nowrap | March 4, 1841 âÂÂ<br/>March 3, 1847 | rowspan=4 | Elected in 1841.Retired or lost re-election. | rowspan=4 | 10 | rowspan=2
|- style="height:2em" | Elected to finish Clay's term. | rowspan=4 nowrap | March 31, 1842 âÂÂ<br/>June 12, 1848 | rowspan=4 | Whig | rowspan=4 align=right | <br/>John J. Crittenden<br /> ! rowspan=4 | 13
|- style="height:2em" | | rowspan=5 | 10 | rowspan=3 | Re-elected in 1843.Resigned to become Governor of Kentucky.
|- style="height:2em" |
|- style="height:2em" ! rowspan=8 | 13 | rowspan=8 align=left | <br/>Joseph R. Underwood<br /> | rowspan=8 | Whig | rowspan=8 nowrap | March 4, 1847 âÂÂ<br/>March 3, 1853 | rowspan=8 | Election year unknown.Retired. | rowspan=8 | 11 | rowspan=3
|- style="height:2em" | | nowrap | June 12, 1848 âÂÂ<br/>June 23, 1848 | colspan=3 | Vacant
|- style="height:2em" | Appointed to continue Crittenden's term.Elected in 1849 to finish Crittenden's term.Retired or lost re-election. | nowrap | June 23, 1848 âÂÂ<br/>March 3, 1849 | | Whig | align=right | <br/>Thomas Metcalfe<br /> ! 14
|- style="height:2em" | | rowspan=6 | 11 | rowspan=2 | Elected in 1849.Resigned effective September 6, 1852, but died June 24, 1852. | rowspan=2 nowrap |March 4, 1849 âÂÂ<br/>June 24, 1852 | rowspan=2 | Whig | rowspan=2 align=right | <br/>Henry Clay<br /> ! rowspan=2 | 15
|- style="height:2em" | rowspan=4
|- style="height:2em" | | nowrap | June 24, 1852 âÂÂ<br/>July 6, 1852 | colspan=3 | Vacant
|- style="height:2em" | Appointed to continue Clay's term.Lost election to finish Clay's term. | nowrap | July 6, 1852 âÂÂ<br/>August 31, 1852 | | Democratic | align=right | <br/>David Meriwether<br /> ! 16
|- style="height:2em" | rowspan=2 | Elected in 1851 to finish Clay's term, in anticipation of Clay's resignation.Retired. | rowspan=2 nowrap | September 1, 1852 âÂÂ<br/>March 3, 1855 | rowspan=2 | Whig | rowspan=2 align=right | <br/>Archibald Dixon<br /> ! rowspan=2 | 17
|- style="height:2em" ! rowspan=3 | 14 | rowspan=3 align=left | <br/>John B. Thompson<br /> | rowspan=3 | Know Nothing | rowspan=3 nowrap | March 4, 1853 âÂÂ<br/>March 3, 1859 | rowspan=3 | Elected in 1851.Retired or lost re-election. | rowspan=3 | 12 |
|- style="height:2em" | | rowspan=3 | 12 | rowspan=3 | Elected in 1854.Retired. | rowspan=3 nowrap | March 4, 1855âÂÂ<br/>March 3, 1861 | | Whig | rowspan=3 align=right | <br/>John J. Crittenden<br /> ! rowspan=3 | 18
|- style="height:2em" | | rowspan=2 | Know Nothing
|- style="height:2em" ! rowspan=5 | 15 | rowspan=5 align=left | <br/>Lazarus W. Powell<br /> | rowspan=5 | Democratic | rowspan=5 nowrap | March 4, 1859 âÂÂ<br/>March 3, 1865 | rowspan=5 | Elected in 1858.Retired to run for U.S. President. | rowspan=5 | 13 |
|- style="height:2em" | rowspan=3 | rowspan=5 | 13 | Elected in 1859.Expelled for supporting the Confederacy. | nowrap | March 4, 1861 âÂÂ<br/>December 4, 1861 | | Democratic | align=right | <br/>John C. Breckinridge<br /> ! 19
|- style="height:2em" | | nowrap | December 4, 1861 âÂÂ<br/>December 10, 1861 | colspan=3 | Vacant
|- style="height:2em" | rowspan=3 | Elected to finish Breckinridge's term. | rowspan=8 nowrap | December 10, 1861 âÂÂ<br/>September 22, 1872 | rowspan=3 | Union Democratic | rowspan=8 align=right | <br/>Garrett Davis<br /> ! rowspan=8 | 20
|- style="height:2em" |
|- style="height:2em" ! rowspan=2 | 16 | rowspan=2 align=left | <br/>James Guthrie<br /> | rowspan=2 | Democratic | rowspan=2 nowrap | March 4, 1865 âÂÂ<br/>February 7, 1868 | rowspan=2 | Elected in 1865.Resigned due to ill health. | rowspan=5 | 14 |
|- style="height:2em" | rowspan=3 | rowspan=7 | 14 | rowspan=5 | Re-elected in 1867.Died. | rowspan=5 | Democratic
|- style="height:2em" | colspan=3 | Vacant | nowrap | February 7, 1868 âÂÂ<br/>February 19, 1868 |
|- style="height:2em" ! rowspan=2 | 17 | rowspan=2 align=left | <br/>Thomas C. McCreery<br /> | rowspan=2 | Democratic | rowspan=2 nowrap | February 19, 1868 âÂÂ<br/>March 3, 1871 | rowspan=2 | Elected to finish Guthrie's term.Lost re-election.
|- style="height:2em" |
|- style="height:2em" ! rowspan=5 | 18 | rowspan=5 align=left | <br/>John W. Stevenson<br /> | rowspan=5 | Democratic | rowspan=5 nowrap | March 4, 1871 âÂÂ<br/>March 3, 1877 | rowspan=5 | Elected in 1869.Retired. | rowspan=5 | 15 | rowspan=3
|- style="height:2em" | | nowrap | September 22, 1872 âÂÂ<br/>September 27, 1872 | colspan=3 | Vacant
|- style="height:2em" | Appointed to continue Davis's term.Elected in 1873 to finish Davis's term.Retired or lost re-election. | nowrap | September 27, 1872 âÂÂ<br/>March 3, 1873 | | Democratic | align=right | <br/>Willis B. Machen<br /> ! 21
|- style="height:2em" | | rowspan=3 | 15 | rowspan=3 | Elected in 1871.Retired. | rowspan=3 nowrap | March 4, 1873 âÂÂ<br/>March 3, 1879 | rowspan=3 | Democratic | rowspan=3 align=right | <br/>Thomas C. McCreery<br /> ! rowspan=3 | 22
|- style="height:2em" |
|- style="height:2em" ! rowspan=7 | 19 | rowspan=7 align=left | <br/>James B. Beck<br /> | rowspan=7 | Democratic | rowspan=7 nowrap | March 4, 1877 âÂÂ<br/>May 3, 1890 | rowspan=3 | Elected in 1876. | rowspan=3 | 16 |
|- style="height:2em" | | rowspan=3 | 16 | rowspan=3 | Elected in 1878.Lost re-election. | rowspan=3 nowrap | March 4, 1879 âÂÂ<br/>March 3, 1885 | rowspan=3 | Democratic | rowspan=3 align=right | <br/>John Stuart Williams<br /> ! rowspan=3 | 23
|- style="height:2em" |
|- style="height:2em" | rowspan=3 | Re-elected in 1881. | rowspan=3 | 17 |
|- style="height:2em" | | rowspan=5 | 17 | rowspan=5 | Elected in 1884. | rowspan=10 nowrap | March 4, 1885 âÂÂ<br/>March 3, 1897 | rowspan=10 | Democratic | rowspan=10 align=right | <br/>J. C. S. Blackburn<br /> ! rowspan=10 | 24
|- style="height:2em" |
|- style="height:2em" | Re-elected in 1888.Died. | rowspan=7 | 18 | rowspan=3
|- style="height:2em" | colspan=3 | Vacant | nowrap | May 3, 1890 âÂÂ<br/>May 26, 1890 |
|- style="height:2em" ! rowspan=2 | 20 | rowspan=2 align=left | <br/>John Carlisle<br /> | rowspan=2 | Democratic | rowspan=2 nowrap | May 26, 1890 âÂÂ<br/>February 4, 1893 | rowspan=2 | Elected to finish Beck's term.Resigned.
|- style="height:2em" | rowspan=3 | rowspan=5 | 18 | rowspan=5 | Re-elected in 1890.Lost re-election.
|- style="height:2em" | colspan=3 | Vacant | nowrap | February 4, 1893 âÂÂ<br/>February 15, 1893 |
|- style="height:2em" ! rowspan=6 | 21 | rowspan=6 align=left | <br/>William Lindsay<br /> | rowspan=6 | Democratic | rowspan=6 nowrap | February 15, 1893 âÂÂ<br/>March 3, 1901 | rowspan=2 | Elected to finish Carlisle's term.
|- style="height:2em" |
|- style="height:2em" | rowspan=4 | Re-elected in 1894.Retired. | rowspan=4 | 19 |
|- style="height:2em" | rowspan=2 | rowspan=4 | 19 | Legislature failed to elect. | nowrap | March 4, 1897 âÂÂ<br/>April 28, 1897 | colspan=3 | Vacant
|- style="height:2em" | rowspan=3 | Elected in 1897 to finish vacant term.Retired. | rowspan=3 nowrap | April 29, 1897 âÂÂ<br/>March 3, 1903 | rowspan=3 | Republican | rowspan=3 align=right | <br/>William J. Deboe<br /> ! rowspan=3 | 25
|- style="height:2em" |
|- style="height:2em" ! rowspan=3 | 22 | rowspan=3 align=left | <br/>J. C. S. Blackburn<br /> | rowspan=3 | Democratic | rowspan=3 nowrap | March 4, 1901 âÂÂ<br/>March 3, 1907 | rowspan=3 | Elected in 1900.Lost re-election. | rowspan=3 | 20 |
|- style="height:2em" | | rowspan=3 | 20 | rowspan=3 | Elected in 1902.Lost renomination. | rowspan=3 nowrap | March 4, 1903 âÂÂ<br/>March 3, 1909 | rowspan=3 | Democratic | rowspan=3 align=right | <br/>James B. McCreary<br /> ! rowspan=3 | 26
|- style="height:2em" |
|- style="height:2em" ! rowspan=3 | 23 | rowspan=3 align=left | <br/>Thomas H. Paynter<br /> | rowspan=3 | Democratic | rowspan=3 nowrap | March 4, 1907 âÂÂ<br/>March 3, 1913 | rowspan=3 | Elected in 1906.Retired. | rowspan=3 | 21 |
|- style="height:2em" | | rowspan=5 | 21 | rowspan=3 | Elected in 1908.Died. | rowspan=3 nowrap | March 4, 1909 âÂÂ<br/>May 23, 1914 | rowspan=3 | Republican | rowspan=3 align=right | <br/>William O. Bradley<br /> ! rowspan=3 | 27
|- style="height:2em" |
|- style="height:2em" ! rowspan=5 | 24 | rowspan=5 align=left | <br/>Ollie Murray James<br /> | rowspan=5 | Democratic | rowspan=5 nowrap | March 4, 1913 âÂÂ<br/>August 28, 1918 | rowspan=5 | Elected in 1912.Died. | rowspan=7 | 22 | rowspan=3
|- style="height:2em" | | nowrap | May 23, 1914 âÂÂ<br/>June 16, 1914 | colspan=3 | Vacant
|- style="height:2em" | Appointed to continue Bradley's term.Elected in 1914 to finish Bradley's term.Retired. | nowrap | June 16, 1914 âÂÂ<br/>March 3, 1915 | | Democratic | align=right | <br/>Johnson N. Camden Jr.<br /> ! 28
|- style="height:2em" | | rowspan=5 | 22 | rowspan=5 | Elected in 1914.Lost re-election. | rowspan=5 nowrap | March 4, 1915 âÂÂ<br/>March 3, 1921 | rowspan=5 | Democratic | rowspan=5 align=right | <br/>J. C. W. Beckham<br /> ! rowspan=5 | 29
|- style="height:2em" | rowspan=3
|- style="height:2em" | colspan=3 | Vacant | nowrap | August 28, 1918 âÂÂ<br/>September 7, 1918 |
|- style="height:2em" ! 25 | align=left | <br/>George B. Martin<br /> | | Democratic | nowrap | September 7, 1918 âÂÂ<br/>March 3, 1919 | Appointed to finish James's term.Retired.
|- style="height:2em" ! rowspan=3 | 26 | rowspan=3 align=left | <br/>A. O. Stanley<br /> | rowspan=3 | Democratic | rowspan=3 nowrap | March 4, 1919 âÂÂ<br/>March 3, 1925 | rowspan=3 | Elected in 1918.Didn't take seat until May 19, 1919, in order to remain Governor of Kentucky.Lost re-election. | rowspan=3 | 23 |
|- style="height:2em" | | rowspan=3 | 23 | rowspan=3 | Elected in 1920.Lost re-election. | rowspan=3 nowrap | March 4, 1921 âÂÂ<br/>March 3, 1927 | rowspan=3 | Republican | rowspan=3 align=right | <br/>Richard P. Ernst<br /> ! rowspan=3 | 30
|- style="height:2em" |
|- style="height:2em" ! rowspan=3 | 27 | rowspan=3 align=left | <br/>Fred Sackett<br /> | rowspan=3 | Republican | rowspan=3 nowrap | March 4, 1925 âÂÂ<br/>January 9, 1930 | rowspan=3 | Elected in 1924.Resigned to become U.S. Ambassador to Germany. | rowspan=6 | 24 |
|- style="height:2em" | | rowspan=6 | 24 | rowspan=6 | Elected in 1926. | rowspan=20 nowrap | March 4, 1927 âÂÂ<br/>January 19, 1949 | rowspan=20 | Democratic | rowspan=20 align=right | <br/>Alben W. Barkley<br /> ! rowspan=20 | 31
|- style="height:2em" | rowspan=4
|- style="height:2em" | colspan=3 | Vacant | nowrap | January 9, 1930 âÂÂ<br/>January 11, 1930 |
|- style="height:2em" ! 28 | align=left | <br/>John Robsion<br /> | | Republican | nowrap | January 11, 1930 âÂÂ<br/>November 30, 1930 | Appointed to continue Sackett's term.Lost elections to finish Sackett's term and to next term.
|- style="height:2em" ! 29 | align=left | <br/>Ben M. Williamson<br /> | | Democratic | nowrap | December 1, 1930 âÂÂ<br/>March 3, 1931 | Elected in 1930 to finish Sackett's term.Retired.
|- style="height:2em" ! rowspan=5 | 30 | rowspan=5 align=left | <br/>M. M. Logan<br /> | rowspan=5 | Democratic | rowspan=5 nowrap | March 4, 1931 âÂÂ<br/>October 3, 1939 | rowspan=3 | Elected in 1930. | rowspan=3 | 25 |
|- style="height:2em" | | rowspan=3 | 25 | rowspan=3 | Re-elected in 1932.
|- style="height:2em" |
|- style="height:2em" | rowspan=2 | Re-elected in 1936.Died. | rowspan=5 | 26 |
|- style="height:2em" | rowspan=3 | rowspan=5 | 26 | rowspan=5 | Re-elected in 1938.
|- style="height:2em" | colspan=3 | Vacant | nowrap | October 3, 1939 âÂÂ<br/>October 10, 1939 |
|- style="height:2em" ! rowspan=4 | 31 | rowspan=4 align=left | <br/>Happy Chandler<br /> | rowspan=4 | Democratic | rowspan=4 nowrap | October 10, 1939 âÂÂ<br/>November 1, 1945 | rowspan=2 | Appointed to continue Logan's term.Elected in 1940 to finish Logan's term.
|- style="height:2em" |
|- style="height:2em" | rowspan=2 | Re-elected in 1942.Resigned to become Commissioner of Baseball. | rowspan=6 | 27 |
|- style="height:2em" | rowspan=4 | rowspan=8 | 27 | rowspan=6 | Re-elected in 1944.Resigned to become U.S. Vice President.
|- style="height:2em" | colspan=3 | Vacant | nowrap | November 1, 1945 âÂÂ<br/>November 19, 1945 |
|- style="height:2em" ! 32 | align=left | <br/>William A. Stanfill<br /> | | Republican | nowrap | November 19, 1945 âÂÂ<br/>November 5, 1946 | Appointed to continue Chandler's term.Retired.
|- style="height:2em" ! rowspan=2 | 33 | rowspan=2 align=left | <br/>John Sherman Cooper<br /> | rowspan=2 | Republican | rowspan=2 nowrap | November 6, 1946 âÂÂ<br/>January 3, 1949 | rowspan=2 | Elected to finish Chandler's term.Lost re-election.
|- style="height:2em" | rowspan=1
|- style="height:2em" ! rowspan=4 | 34 | rowspan=4 align=left | <br/>Virgil Chapman<br /> | rowspan=4 | Democratic | rowspan=4 nowrap | January 3, 1949 âÂÂ<br/>March 8, 1951 | rowspan=4 | Elected in 1948.Died. | rowspan=8 | 28 | rowspan=3
|- style="height:2em" | rowspan=1 | Appointed to continue Barkley's term.Resigned to trigger special election. | rowspan=1 nowrap | January 20, 1949 âÂÂ<br/>November 26, 1950 | rowspan=1 | Democratic | rowspan=1 align=right | <br/>Garrett Withers<br /> ! rowspan=1 | 32
|- style="height:2em" | Elected to finish Barkley's term, having been elected to the next term. | rowspan=10 nowrap | November 27, 1950 âÂÂ<br/>January 3, 1957 | rowspan=10 | Democratic | rowspan=10 align=right | <br/>Earle Clements<br /> ! rowspan=10 | 33
|- style="height:2em" | rowspan=4 | rowspan=9 | 28 | rowspan=9 | Elected to full term in 1950.Lost re-election.
|- style="height:2em" | colspan=3 | Vacant | nowrap | March 8, 1951 âÂÂ<br/>March 19, 1951 |
|- style="height:2em" ! 35 | align=left | <br/>Thomas R. Underwood<br /> | | Democratic | nowrap | March 19, 1951 âÂÂ<br/>November 4, 1952 | Appointed to continue Chapman's term.Lost election to finish Chapman's term.
|- style="height:2em" ! rowspan=2 | 36 | rowspan=2 align=left | <br/>John Sherman Cooper<br /> | rowspan=2 | Republican | rowspan=2 nowrap | November 5, 1952 âÂÂ<br/>January 3, 1955 | rowspan=2 | Elected to finish Chapman's term. Lost re-election.
|- style="height:2em" |
|- style="height:2em" ! 37 | align=left | <br/>Alben W. Barkley<br /> | | Democratic | nowrap | January 3, 1955 âÂÂ<br/>April 30, 1956 | Elected in 1954.Died. | rowspan=6 | 29 | rowspan=4
|- style="height:2em" | colspan=3 | Vacant | nowrap | April 30, 1956 âÂÂ<br/>June 21, 1956 |
|- style="height:2em" ! 38 | align=left | <br/>Robert Humphreys<br /> | | Democratic | nowrap | June 21, 1956 âÂÂ<br/>November 6, 1956 | Appointed to continue Barkley's term.Retired when elected successor qualified.
|- style="height:2em" ! rowspan=10 | 39 | rowspan=10 align=left | <br/>John Sherman Cooper<br /> | rowspan=10 | Republican | rowspan=10 nowrap | November 7, 1956 âÂÂ<br/>January 3, 1973 | rowspan=3 | Elected to finish Barkley's term.
|- style="height:2em" | | rowspan=3 | 29 | rowspan=3 | Elected in 1956. | rowspan=6 nowrap | January 3, 1957 âÂÂ<br/>December 16, 1968 | rowspan=6 | Republican | rowspan=6 align=right | <br/>Thruston Morton<br /> ! rowspan=6 | 34
|- style="height:2em" |
|- style="height:2em" | rowspan=3 | Re-elected in 1960. | rowspan=3 | 30 |
|- style="height:2em" | | rowspan=4 | 30 | rowspan=3 | Re-elected in 1962.Retired, and resigned early to give successor preferential seniority.
|- style="height:2em" |
|- style="height:2em" | rowspan=4 | Re-elected in 1966.Retired. | rowspan=4 | 31 | rowspan=2
|- style="height:2em" | Appointed to finish Morton's term, having already been elected to the next term. | rowspan=4 nowrap | December 17, 1968 âÂÂ<br/>December 27, 1974 | rowspan=4 | Republican | rowspan=4 align=right | <br/>Marlow Cook<br /> ! rowspan=4 | 35
|- style="height:2em" | | rowspan=4 | 31 | rowspan=3 | Elected in 1968.Lost re-election, and resigned early to give successor preferential seniority.
|- style="height:2em" |
|- style="height:2em" ! rowspan=7 | 40 | rowspan=7 align=left | <br/>Walter Dee Huddleston<br /> | rowspan=7 | Democratic | rowspan=7 nowrap | January 3, 1973 âÂÂ<br/>January 3, 1985 | rowspan=4 | Elected in 1972. | rowspan=4 | 32 | rowspan=2
|- style="height:2em" | Appointed to finish Cook's term, having already been elected to the next term. | rowspan=13 nowrap | December 28, 1974 âÂÂ<br/>January 3, 1999 | rowspan=13 | Democratic | rowspan=13 align=right | <br/>Wendell Ford<br /> ! rowspan=13 | 36
|- style="height:2em" | | rowspan=3 | 32 | rowspan=3 | Elected in 1974.
|- style="height:2em" |
|- style="height:2em" | rowspan=3 | Re-elected in 1978.Lost re-election. | rowspan=3 | 33 |
|- style="height:2em" | | rowspan=3 | 33 | rowspan=3 | Re-elected in 1980.
|- style="height:2em" |
|- style="height:2em" ! rowspan=21 | 41 | rowspan=21 align=left | <br/>Mitch McConnell<br /> | rowspan=21 | Republican | rowspan=21 nowrap | January 3, 1985 âÂÂ<br/>present | rowspan=3 | Elected in 1984. | rowspan=3 | 34 |
|- style="height:2em" | | rowspan=3 | 34 | rowspan=3 | Re-elected in 1986.
|- style="height:2em" |
|- style="height:2em" | rowspan=3 | Re-elected in 1990. | rowspan=3 | 35 |
|- style="height:2em" | | rowspan=3 | 35 | rowspan=3 | Re-elected in 1992.Retired.
|- style="height:2em" |
|- style="height:2em" | rowspan=3 | Re-elected in 1996. | rowspan=3 | 36 |
|- style="height:2em" | | rowspan=3 | 36 | rowspan=3 | Elected in 1998. | rowspan=6 nowrap | January 3, 1999 âÂÂ<br/>January 3, 2011 | rowspan=6 | Republican | rowspan=6 align=right | <br/>Jim Bunning<br /> ! rowspan=6 | 37
|- style="height:2em" |
|- style="height:2em" | rowspan=3 | Re-elected in 2002. | rowspan=3 | 37 |
|- style="height:2em" | | rowspan=3 | 37 | rowspan=3 | Re-elected in 2004.Retired.
|- style="height:2em" |
|- style="height:2em" | rowspan=3 | Re-elected in 2008. | rowspan=3 | 38 |
|- style="height:2em" | | rowspan=3 | 38 | rowspan=3 | Elected in 2010. | rowspan=9 nowrap | January 3, 2011 âÂÂ<br/>present | rowspan=9 | Republican | rowspan=9 align=right | <br/>Rand Paul<br /> ! rowspan=9 | 38
|- style="height:2em" |
|- style="height:2em" | rowspan=3 | Re-elected in 2014. | rowspan=3 | 39 |
|- style="height:2em" | | rowspan=3 | 39 | rowspan=3 | Re-elected in 2016.
|- style="height:2em" |
|- style="height:2em" | rowspan=3 |Re-elected in 2020.Retiring at the end of term. | rowspan=3 | 40 |
|- style="height:2em" | | rowspan=3|40 | rowspan=3| Re-elected in 2022.
|- style="height:2em" |
|- style="height:2em" | rowspan=2 colspan=5 | To be determined in the 2026 election. | rowspan=2| 41 |
|- style="height:2em" | | 41 | colspan=5 | To be determined in the 2028 election.