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.
List of senators
|- style="height:2em" | colspan=3 | Vacant | nowrap | June 1, 1792 –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 –June 18, 1792 | colspan=3 | Vacant
|- style="height:2em" ! rowspan=7 | 1 | rowspan=7 align=left | John Brown | rowspan=2 | Anti-Admin. | rowspan=7 nowrap | June 18, 1792 –March 3, 1805 | Elected in 1792. | rowspan=2 | Elected in 1792. | rowspan=2 nowrap | June 18, 1792 –March 3, 1795 | rowspan=2 | Anti-Admin. | rowspan=2 align=right | John Edwards ! rowspan=2 | 1
|- style="height:2em" | rowspan=3 | Re-elected in 1792. | rowspan=3 | 2
|- style="height:2em" | rowspan=5 | Democratic-Republican | | rowspan=3 | 2 | rowspan=3 | Elected in 1794.Lost re-election. | rowspan=3 nowrap | March 4, 1795 –March 3, 1801 | rowspan=3 | Federalist | rowspan=3 align=right | Humphrey Marshall ! 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 –August 7, 1805 | rowspan=3 | Democratic-Republican | rowspan=3 align=right | John Breckinridge ! rowspan=3 | 3
|- style="height:2em"
|- style="height:2em" ! rowspan=6 | 2 | rowspan=6 align=left | Buckner Thruston | rowspan=6 | Democratic-Republican | rowspan=6 nowrap | March 4, 1805 –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 –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 –November 18, 1806 | | Democratic-Republican | align=right | John Adair ! 4
|- style="height:2em" | Elected to finish Adair's term, despite not meeting the constitutional age minimum.Retired. | nowrap | November 19, 1806 –March 3, 1807 | | Democratic-Republican | align=right | Henry Clay ! 5
|- style="height:2em" | | rowspan=5 | 4 | rowspan=5 | Elected in 1806.Retired. | rowspan=5 nowrap | March 4, 1807 –March 3, 1813 | rowspan=5 | Democratic-Republican | rowspan=5 align=right | John Pope ! rowspan=5 | 6
|- style="height:2em" | rowspan=3
|- style="height:2em" | colspan=3 | Vacant | nowrap | December 18, 1809 –January 10, 1810
|- style="height:2em" ! 3 | align=left | Henry Clay | | Democratic-Republican | nowrap | January 10, 1810 –March 3, 1811 | Appointed to finish Thruston's term.Retired.
|- style="height:2em" ! rowspan=2 | 4 | rowspan=2 align=left | George M. Bibb | rowspan=2 | Democratic-Republican | rowspan=2 nowrap | March 4, 1811 –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 –December 24, 1814 | rowspan=4 | Democratic-Republican | rowspan=4 align=right | Jesse Bledsoe ! rowspan=4 | 7
|- style="height:2em" | colspan=3 | Vacant | nowrap | August 23, 1814 –August 30, 1814
|- style="height:2em" ! 5 | align=left | George Walker | | Democratic-Republican | nowrap | August 30, 1814 –February 2, 1815 | Appointed to continue Bibb's term.Successor qualified.
|- style="height:2em" ! rowspan=4 | 6 | rowspan=4 align=left | William Barry | rowspan=4 | Democratic-Republican | rowspan=4 nowrap | February 2, 1815 –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 –February 2, 1815 | colspan=3 | Vacant
|- style="height:2em" | rowspan=5 | Elected in 1815 to finish Bledsoe's term., citing The Union (Washington, KY). January 14, 1815. Argus of Western America (Frankfort, KY). January 7, 1815.Retired or lost re-election. | rowspan=5 nowrap | February 2, 1815 –March 3, 1819 | rowspan=5 | Democratic-Republican | rowspan=5 align=right | Isham Talbot ! rowspan=5 | 8
|- style="height:2em" | rowspan=3
|- style="height:2em" | colspan=3 | Vacant | nowrap | May 1, 1816 –November 3, 1816
|- style="height:2em" ! 7 | align=left | Martin Hardin | | Democratic-Republican | nowrap | November 3, 1816 –March 3, 1817 | Appointed to continue Bibb's term.Elected in 1816 to finish Bibb's termRetired.
|- style="height:2em" ! 8 | align=left | John J. Crittenden | | Democratic-Republican | nowrap | March 4, 1817 –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 –December 10, 1819
| rowspan=4 | rowspan=6 | 6 | rowspan=2 | Elected in 1818.Resigned to run for governor. | rowspan=2 nowrap | March 4, 1819 –May 28, 1820 | rowspan=2 | Democratic-Republican | rowspan=2 align=right | William Logan ! rowspan=2 | 9
|- style="height:2em" ! rowspan=7 | 9 | rowspan=7 align=left | Richard Mentor Johnson | rowspan=5 | Democratic-Republican | rowspan=7 nowrap | December 10, 1819 –March 3, 1829 | rowspan=4 | Elected to finish Crittenden's term.
|- style="height:2em"
| nowrap | May 28, 1820 –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, 1820–March 3, 1825 | rowspan=3 | Democratic-Republican | rowspan=3 align=right | Isham Talbot ! 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 –March 3, 1831 | rowspan=3 | Jacksonian | rowspan=3 align=right | John Rowan ! rowspan=3 | 11
|- style="height:2em"
|- style="height:2em" ! rowspan=4 | 10 | rowspan=4 align=left | George M. Bibb | rowspan=4 | Jacksonian | rowspan=4 nowrap | March 4, 1829 –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 –November 10, 1831 | colspan=3 | Vacant
|- style="height:2em" | rowspan=3 | Elected late in 1831. | rowspan=6 nowrap | November 10, 1831 –March 31, 1842 | rowspan=3 | NationalRepublican | rowspan=6 align=right | Henry Clay ! rowspan=6 | 12
|- style="height:2em"
|- style="height:2em" ! rowspan=3 | 11 | rowspan=3 align=left | John J. Crittenden | | NationalRepublican | rowspan=3 nowrap | March 4, 1835 –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 | James T. Morehead | rowspan=4 | Whig | rowspan=4 nowrap | March 4, 1841 –March 3, 1847 | rowspan=4 | Elected in 1841.Retired to continue his law practice. | rowspan=4 | 10 | rowspan=2
|- style="height:2em" | Elected to finish Clay's term. | rowspan=4 nowrap | March 31, 1842 –June 12, 1848 | rowspan=4 | Whig | rowspan=4 align=right | John J. Crittenden ! 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 | Joseph R. Underwood | rowspan=8 | Whig | rowspan=8 nowrap | March 4, 1847 –March 3, 1853 | rowspan=8 | Election year unknown.Retired. | rowspan=8 | 11 | rowspan=3
|- style="height:2em"
| nowrap | June 12, 1848 –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 –March 3, 1849 | | Whig | align=right | Thomas Metcalfe ! 14
|- style="height:2em" | | rowspan=6 | 11 | rowspan=2 | Elected in 1849.Submitted resignation, but died early. | rowspan=2 nowrap |March 4, 1849 –June 24, 1852 | rowspan=2 | Whig | rowspan=2 align=right | Henry Clay ! rowspan=2 | 15
|- style="height:2em" | rowspan=4
|- style="height:2em"
| nowrap | June 24, 1852 –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 –August 31, 1852 | | Democratic | align=right | David Meriwether ! 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 –March 3, 1855 | rowspan=2 | Whig | rowspan=2 align=right | Archibald Dixon ! rowspan=2 | 17
|- style="height:2em" ! rowspan=3 | 14 | rowspan=3 align=left | John B. Thompson | rowspan=3 | Know Nothing | rowspan=3 nowrap | March 4, 1853 –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, 1855–March 3, 1861 | | Whig | rowspan=3 align=right | John J. Crittenden ! rowspan=3 | 18
|- style="height:2em" | | rowspan=2 | Know Nothing
|- style="height:2em" ! rowspan=5 | 15 | rowspan=5 align=left | Lazarus W. Powell | rowspan=5 | Democratic | rowspan=5 nowrap | March 4, 1859 –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 –December 4, 1861 | | Democratic | align=right | John C. Breckinridge ! 19
|- style="height:2em"
| nowrap | December 4, 1861 –December 10, 1861 | colspan=3 | Vacant
|- style="height:2em" | rowspan=3 | Elected to finish Breckinridge's term. | rowspan=8 nowrap | December 10, 1861 –September 22, 1872 | rowspan=3 | Union Democratic | rowspan=8 align=right | Garrett Davis ! rowspan=8 | 20
|- style="height:2em"
|- style="height:2em" ! rowspan=2 | 16 | rowspan=2 align=left | James Guthrie | rowspan=2 | Democratic | rowspan=2 nowrap | March 4, 1865 –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 –February 19, 1868
|- style="height:2em" ! rowspan=2 | 17 | rowspan=2 align=left | Thomas C. McCreery | rowspan=2 | Democratic | rowspan=2 nowrap | February 19, 1868 –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 | John W. Stevenson | rowspan=5 | Democratic | rowspan=5 nowrap | March 4, 1871 –March 3, 1877 | rowspan=5 | Elected in 1869.Retired. | rowspan=5 | 15 | rowspan=3
|- style="height:2em"
| nowrap | September 22, 1872 –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 –March 3, 1873 | | Democratic | align=right | Willis B. Machen ! 21
|- style="height:2em" | | rowspan=3 | 15 | rowspan=3 | Elected in 1871.Retired. | rowspan=3 nowrap | March 4, 1873 –March 3, 1879 | rowspan=3 | Democratic | rowspan=3 align=right | Thomas C. McCreery ! rowspan=3 | 22
|- style="height:2em"