List of United States senators from Louisiana

Template:Short description Template:Use mdy dates Template:Multiple image Louisiana was admitted to the Union on April 30, 1812, and elects senators to class 2 and class 3. Russell Long was the state's longest-serving senator, serving from 1948–1987. Its current senators are Republicans Bill Cassidy and John Kennedy.

Louisiana is one of fifteen states alongside California, Colorado, Georgia, Hawaii, Idaho, Maine, Massachusetts, Minnesota, Missouri, Nevada, Pennsylvania, South Dakota, Utah, and West Virginia to have a younger senior senator and an older junior senator.

List of senators

|- style="height:2em" | colspan=3 | Vacant | Apr 30, 1812 –
Sep 3, 1812 | Louisiana did not elect its senators until four months after statehood. | rowspan=7 | 1 | rowspan=5 Template:List of United States senators Congress | rowspan=5 | 1 | Louisiana did not elect its senators until four months after statehood. | Apr 30, 1812 –
Sep 3, 1812 | colspan=3 | Vacant

|- style="height:2em" ! 1 | align=left |
Jean Noël Destréhan | Template:Party shading/Democratic-Republican | Democratic-
Republican | nowrap | Sep 3, 1812 –
Oct 1, 1812 | Resigned | rowspan=4 | Elected in 1812. | rowspan=4 nowrap | Sep 3, 1812 –
Mar 3, 1813 | rowspan=4 Template:Party shading/Democratic-Republican | Democratic-
Republican | rowspan=4 align=right | Allan B. Magruder ! rowspan=4 | 1

|- style="height:2em" | colspan=3 | Vacant | nowrap | Oct 1, 1812 –
Oct 8, 1812 |  

|- style="height:2em" ! 2 | align=left |
Thomas Posey | Template:Party shading/Democratic-Republican | Democratic-
Republican | nowrap | Oct 8, 1812 –
Feb 4, 1813 | Appointed to continue Destréhan's term.Template:PbLost election to finish Destréhan's term.

|- style="height:2em" ! rowspan=3 | 3 | rowspan=3 align=left |
James Brown | rowspan=3 Template:Party shading/Democratic-Republican | Democratic-
Republican | rowspan=3 nowrap | Feb 5, 1813 –
Mar 3, 1817 | rowspan=3 | Elected to finish Destréhan's term.Template:PbLost election to full term.

|- style="height:2em" | Template:List of United States senators Congress | rowspan=5 | 2 | rowspan=5 | Elected in 1813
Retired. | rowspan=5 nowrap | Mar 4, 1813 –
Mar 3, 1819 | rowspan=5 Template:Party shading/Democratic-Republican | Democratic-
Republican | rowspan=5 align=right | Eligius Fromentin ! rowspan=5 | 2

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" ! 4 | align=left |
William C. C. Claiborne | Template:Party shading/Democratic-Republican | Democratic-
Republican | nowrap | Mar 4, 1817 –
Nov 23, 1817 | Elected in 1817.Template:PbDied. | rowspan=5 | 2 | rowspan=3 Template:List of United States senators Congress

|- style="height:2em" | colspan=3 | Vacant | nowrap | Nov 23, 1817 –
Jan 12, 1818 |  

|- style="height:2em" ! rowspan=6 | 5 | rowspan=6 align=left |
Henry Johnson | rowspan=6 Template:Party shading/Democratic-Republican | Democratic-
Republican | rowspan=6 nowrap | Jan 12, 1818 –
May 27, 1824 | rowspan=3 | Elected to finish Claiborne's term.

|- style="height:2em" | Template:List of United States senators Congress | rowspan=7 | 3 | rowspan=3 | Elected in 1819.Template:PbResigned to become U.S. Minister to France. | rowspan=3 nowrap | Mar 4, 1819 –
Dec 10, 1823 | rowspan=3 Template:Party shading/Democratic-Republican | Democratic-
Republican | rowspan=3 align=right |
James Brown ! rowspan=3 | 3

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 | Elected to full term in 1823.Template:PbResigned to become Governor of Louisiana. | rowspan=7 | 3 | rowspan=5 Template:List of United States senators Congress

|- style="height:2em" |   | nowrap | Dec 10, 1823 –
Jan 15, 1824 | colspan=3 | Vacant

|- style="height:2em" | rowspan=3 | Elected to finish Brown's term. | rowspan=10 nowrap | Jan 15, 1824 –
May 19, 1833 | rowspan=3 Template:Party shading/Democratic-Republican | Democratic-
Republican | rowspan=10 align=right |
Josiah S. Johnston ! rowspan=10 | 4

|- style="height:2em" | colspan=3 | Vacant | nowrap | May 27, 1824 –
Nov 19, 1824 |  

|- style="height:2em" ! rowspan=3 | 6 | rowspan=3 align=left |
Dominique Bouligny | Template:Party shading/Democratic-Republican | Democratic-
Republican | rowspan=3 nowrap | Nov 19, 1824 –
Mar 3, 1829 | rowspan=3 | Elected to finish Johnson's term.

|- style="height:2em" | rowspan=2 Template:Party shading/National Republican | National
Republican | Template:List of United States senators Congress | rowspan=3 | 4 | rowspan=3 | Elected to full term in 1825. | rowspan=7 Template:Party shading/National Republican | National
Republican

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" ! rowspan=2 | 7 | rowspan=2 align=left |
Edward Livingston | rowspan=2 Template:Party shading/Jacksonian | Jacksonian | rowspan=2 nowrap | Mar 4, 1829 –
May 24, 1831 | rowspan=2 | Elected in 1829.<ref>Template:Cite news</ref>Template:PbResigned to become U.S. Secretary of State. | rowspan=7 | 4 | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 Template:List of United States senators Congress | rowspan=10 | 5 | rowspan=4 | Re-elected in 1831.Template:PbDied.

|- style="height:2em" | colspan=3 | Vacant | nowrap | May 24, 1831 –
Nov 15, 1831 |  

|- style="height:2em" ! rowspan=4 | 8 | rowspan=4 align=left |
George A. Waggaman | rowspan=4 Template:Party shading/National Republican | National
Republican | rowspan=4 nowrap | Nov 15, 1831 –
Mar 3, 1835 | rowspan=4 | Elected to finish Livingston's term.

|- style="height:2em" | rowspan=3 Template:List of United States senators Congress

|- style="height:2em" |   | nowrap | May 19, 1833 –
Dec 19, 1833 | colspan=3 | Vacant

|- style="height:2em" | rowspan=3 | Elected to finish Johnston's term.Template:PbResigned due to ill health. | rowspan=3 nowrap | Dec 19, 1833 –
Jan 5, 1837 | rowspan=3 Template:Party shading/National Republican | National
Republican | rowspan=3 align=right |
Alexander Porter ! rowspan=3 | 5

|- style="height:2em" | colspan=3 | Vacant | nowrap | Mar 4, 1835 –
Jan 13, 1836 | Charles Gayarré (J) was elected in 1835, but resigned due to ill health. | rowspan=6 | 5 | rowspan=4 Template:List of United States senators Congress

|- style="height:2em" ! rowspan=5 | 9 | rowspan=5 align=left |
Robert C. Nicholas | rowspan=3 Template:Party shading/Jacksonian | Jacksonian | rowspan=5 nowrap | Jan 13, 1836 –
Mar 3, 1841 | rowspan=5 | Elected to finish Gauarré's term.Template:PbTemplate:Dm

|- style="height:2em" |   | nowrap | Jan 5, 1837 –
Jan 12, 1837 | colspan=3 | Vacant

|- style="height:2em" | Elected to finish Porter's term. | rowspan=4 nowrap | Jan 12, 1837 –
Mar 1, 1842 | Template:Party shading/Jacksonian | Jacksonian | rowspan=4 align=right |
Alexandre Mouton ! rowspan=4 | 6

|- style="height:2em" | rowspan=2 Template:Party shading/Democratic | Democratic | Template:List of United States senators Congress | rowspan=5 | 6 | rowspan=3 | Re-elected in 1837.Template:PbResigned. | rowspan=3 Template:Party shading/Democratic | Democratic

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" ! rowspan=7 | 10 | rowspan=7 align=left |
Alexander Barrow | rowspan=7 Template:Party shading/Whig | Whig | rowspan=7 nowrap | Mar 4, 1841 –
Dec 29, 1846 | rowspan=7 | Elected in 1840.Template:PbDied. | rowspan=9 | 6 | rowspan=3 Template:List of United States senators Congress

|- style="height:2em" |   | nowrap | Mar 1, 1842 –
Apr 14, 1842 | colspan=3 | Vacant

|- style="height:2em" | Appointed to finish Mouton's term.Template:PbLost election to full term. | nowrap | Apr 14, 1842 –
Mar 3, 1843 | Template:Party shading/Whig | Whig | align=right |
Charles Conrad ! 7

|- style="height:2em" | rowspan=3 Template:List of United States senators Congress | rowspan=7 | 7 | Elected in 1843, but due to ill health did not take his seat.Template:PbDied. | nowrap | Mar 4, 1843 –
Jan 13, 1844 | Template:Party shading/Whig | Whig | align=right |
Alexander Porter ! 8

|- |   | nowrap | Jan 13, 1844 –
Feb 12, 1844 | colspan=3 | Vacant

|- style="height:2em" | rowspan=5 |Elected to finish Porter's termTemplate:PbLost election to full term in 1849. | rowspan=5 nowrap | Feb 12, 1844 –
Mar 3, 1849 | rowspan=5 Template:Party shading/Whig | Whig | rowspan=5 align=right |
Henry Johnson ! rowspan=5 | 9

|- style="height:2em" | rowspan=3 Template:List of United States senators Congress

|- style="height:2em" | colspan=3 | Vacant | nowrap | Dec 29, 1846 –
Jan 21, 1847 |  

|- style="height:2em" ! 11 | align=left |
Pierre Soulé | Template:Party shading/Democratic | Democratic | nowrap | Jan 21, 1847 –
Mar 3, 1847 | Elected to finish Barrow's term.Template:PbTemplate:Dm

|- style="height:2em" ! rowspan=3 | 12 | rowspan=3 align=left |
Solomon W. Downs | rowspan=3 Template:Party shading/Democratic | Democratic | rowspan=3 nowrap | Mar 4, 1847 –
Mar 3, 1853 | rowspan=3 | Elected in 1847.Template:PbLost re-election. | rowspan=3 | 7 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=5 | 8 | rowspan=3 | Elected in 1848.Template:PbResigned to become U.S. Minister to Spain. | rowspan=3 nowrap | Mar 3, 1849 –
Apr 11, 1853 | rowspan=3 Template:Party shading/Democratic | Democratic | rowspan=3 align=right |
Pierre Soulé ! rowspan=3 | 10

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" ! rowspan=6 | 13 | rowspan=6 align=left |
Judah P. Benjamin | rowspan=4 Template:Party shading/Whig | Whig | rowspan=6 nowrap | Mar 4, 1853 –
Feb 4, 1861 | rowspan=5 | Elected in 1852. | rowspan=5 | 8 | rowspan=3 Template:List of United States senators Congress

|- style="height:2em" |   | nowrap | Apr 11, 1853 –
Dec 5, 1853 | colspan=3 | Vacant

|- style="height:2em" | Elected to finish Soulé's term. | rowspan=4 nowrap | Dec 5, 1853 –
Feb 4, 1861 | rowspan=4 Template:Party shading/Democratic | Democratic | rowspan=4 align=right |
John Slidell ! rowspan=4 | 11

|- style="height:2em" | Template:List of United States senators Congress | rowspan=4 | 9 | rowspan=3 | Re-election year unknown.Template:PbResigned.

|- style="height:2em" | rowspan=2 Template:Party shading/Democratic | Democratic | Template:List of United States senators Congress

|- style="height:2em" | Re-elected in 1859.Template:PbWithdrew. | rowspan=4 | 9 | rowspan=2 Template:List of United States senators Congress

|- style="height:2em" | rowspan=5 colspan=3 | Vacant | rowspan=5 nowrap | Feb 4, 1861 –
Jul 8, 1868 | rowspan=5 | Civil War and Reconstruction | rowspan=6 | Civil War and Reconstruction | rowspan=6 nowrap | Feb 4, 1861 –
Jul 9, 1868 | rowspan=6 colspan=3 | Vacant

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 10

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=5 | 10 | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 Template:List of United States senators Congress | rowspan=6 | 11

|- style="height:2em" ! rowspan=3 | 14 | rowspan=3 align=left |
John S. Harris | rowspan=3 Template:Party shading/Republican | Republican | rowspan=3 nowrap | Jul 8, 1868 –
Mar 3, 1871 | rowspan=3 | Elected to finish incomplete term in 1868.Template:PbTemplate:Dm.

|- style="height:2em" | rowspan=3 | Elected to finish incomplete term.Template:PbResigned to become Governor of Louisiana. | rowspan=3 nowrap | Jul 9, 1868 –
Nov 1, 1872 | rowspan=3 Template:Party shading/Republican | Republican | rowspan=3 align=right |
William Pitt Kellogg ! rowspan=3 | 12

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" ! rowspan=5 | 15 | rowspan=5 align=left |
J. R. West | rowspan=5 Template:Party shading/Republican | Republican | rowspan=5 nowrap | Mar 4, 1871 –
Mar 3, 1877 | rowspan=5 | Election year unknown.Template:PbRetired. | rowspan=5 | 11 | rowspan=2 Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 | Senate declined to seat rival claimants William L. McMillen and P. B. S. PinchbackTemplate:Sfn | rowspan=3 nowrap | Nov 1, 1872 –
Jan 12, 1876 | rowspan=3 colspan=3 | Vacant

|- style="height:2em" | Template:List of United States senators Congress | rowspan=4 | 12

|- style="height:2em" | rowspan=2 Template:List of United States senators Congress

|- style="height:2em" | rowspan=2 | Elected to finish incomplete term in 1876.Template:PbLost re-election. | rowspan=2 nowrap | Jan 12, 1876 –
Mar 3, 1879 | rowspan=2 Template:Party shading/Democratic | Democratic | rowspan=2 align=right |
James B. Eustis ! rowspan=2 | 13

|- style="height:2em" ! rowspan=3 | 16 | rowspan=3 align=left |
William Pitt Kellogg | rowspan=3 Template:Party shading/Republican | Republican | rowspan=3 nowrap | Mar 4, 1877 –
Mar 3, 1883 | rowspan=3 | Elected in 1876.Template:PbRetired to run for U.S. House. | rowspan=3 | 12 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 13 | rowspan=3 | Elected in 1879.Template:PbLost re-election. | rowspan=3 nowrap | Mar 4, 1879 –
Mar 3, 1885 | rowspan=3 Template:Party shading/Democratic | Democratic | rowspan=3 align=right |
Benjamin F. Jonas ! rowspan=3 | 14

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" ! rowspan=5 | 17 | rowspan=5 align=left |
Randall L. Gibson | rowspan=5 Template:Party shading/Democratic | Democratic | rowspan=5 nowrap | Mar 4, 1883 –
Dec 15, 1892 | rowspan=3 | Elected in 1882. | rowspan=3 | 13 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 14 | rowspan=3 | Election year unknown.Template:PbRetired. | rowspan=3 nowrap | Mar 4, 1885 –
Mar 3, 1891 | rowspan=3 Template:Party shading/Democratic | Democratic | rowspan=3 align=right |
James B. Eustis ! rowspan=3 | 15

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=2 | Re-elected in 1889.Template:PbDied. | rowspan=6 | 14 | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 Template:List of United States senators Congress | rowspan=6 | 15 | rowspan=4 | Elected in 1891.Template:PbResigned to become U.S. Supreme Court Justice. | rowspan=4 nowrap | Mar 4, 1891 –
Mar 12, 1894 | rowspan=4 Template:Party shading/Democratic | Democratic | rowspan=4 align=right |
Edward Douglass White ! rowspan=4 | 16

|- style="height:2em" | colspan=3 | Vacant | nowrap | Dec 15, 1892 –
Dec 31, 1892 |  

|- style="height:2em" ! rowspan=6 | 18 | rowspan=6 align=left | File:Donelson Caffery.jpg
Donelson Caffery | rowspan=6 Template:Party shading/Democratic | Democratic | rowspan=6 nowrap | Dec 31, 1892 –
Mar 3, 1901 | rowspan=3 | Appointed to continue Gibson's term.Template:PbElected in 1894 to finish Gibson's term.Template:Sfn

|- style="height:2em" | rowspan=2 Template:List of United States senators Congress

|- style="height:2em" | rowspan=2 | Appointed to continue White's term.Template:PbElected in 1894 to finish White's term.Template:SfnTemplate:PbRetired. | rowspan=2 nowrap | Mar 12, 1894 –
Mar 3, 1897 | rowspan=2 Template:Party shading/Democratic | Democratic | rowspan=2 align=right | File:Newton Crain Blanchard.jpg
Newton C. Blanchard ! rowspan=2 | 17

|- style="height:2em" | rowspan=3 | Elected in 1894 to the next term, before election to finish Gibson's term.Template:PbRetired. | rowspan=3 | 15 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 16 | rowspan=3 | Elected in 1896.<ref>Template:Cite news</ref> | rowspan=7 nowrap | Mar 4, 1897 –
Jun 28, 1910 | rowspan=7 Template:Party shading/Democratic | Democratic | rowspan=7 align=right | File:Samuel Douglas McEnery.jpg
Samuel D. McEnery ! rowspan=7 | 18

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" ! rowspan=8 | 19 | rowspan=8 align=left | File:Murphy James Foster.jpg
Murphy J. Foster | rowspan=8 Template:Party shading/Democratic | Democratic | rowspan=8 nowrap | Mar 4, 1901 –
Mar 3, 1913 | rowspan=3 | Elected in 1900.<ref name=NYTLA1900>Template:Cite news</ref> | rowspan=3 | 16 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 17 | rowspan=3 | Re-elected early in 1900.<ref name=NYTLA1900/>

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=5 | Re-elected early in 1904.<ref>Template:Cite book</ref>Template:PbLost renomination. | rowspan=5 | 17 | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 Template:List of United States senators Congress | rowspan=5 | 18 | Re-elected in 1908.<ref name=NYTLA1908>Template:Cite news</ref>Template:PbDied.

|- style="height:2em" |   | nowrap | Jun 28, 1910 –
Dec 7, 1910 | colspan=3 | Vacant

|- style="height:2em" | rowspan=3 |Elected to finish McEnery's term.Template:SfnTemplate:PbRetired. | rowspan=3 nowrap | Dec 7, 1910 –
Mar 3, 1915 | rowspan=3 Template:Party shading/Democratic | Democratic | rowspan=3 align=right | File:JohnRThornton.jpg
John Thornton ! rowspan=3 | 19

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" ! rowspan=12 | 20 | rowspan=12 align=left | File:JosephERansdell.jpg
Joseph E. Ransdell | rowspan=12 Template:Party shading/Democratic | Democratic | rowspan=12 nowrap | Mar 4, 1913 –
Mar 3, 1931 | rowspan=6 | Elected in 1912. | rowspan=6 | 18 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=6 | 19 | rowspan=2 | Elected early in 1912.Template:PbDied. | rowspan=2 nowrap | Mar 4, 1915 –
Apr 12, 1918 | rowspan=2 Template:Party shading/Democratic | Democratic | rowspan=2 align=right | File:Robert Foligny Broussard.jpg
Robert F. Broussard ! rowspan=2 | 20

|- style="height:2em" | rowspan=4 Template:List of United States senators Congress

|- style="height:2em" |   | nowrap | Apr 12, 1918 –
Apr 22, 1918 | colspan=3 | Vacant

|- style="height:2em" | Appointed to continue Broussard's term.Template:PbRetired when elected successor qualified. | nowrap | Apr 22, 1918 –
Nov 5, 1918 | Template:Party shading/Democratic | Democratic | align=right | File:WalterGuion.jpg
Walter Guion ! 21

|- style="height:2em" | rowspan=2 | Elected to finish Broussard's term.Template:PbRetired. | rowspan=2 nowrap | Nov 6, 1918 –
Mar 3, 1921 | rowspan=2 Template:Party shading/Democratic | Democratic | rowspan=2 align=right | File:GAY, SEN. E.J. LCCN2016860338 (3x4a).jpg
Edward J. Gay ! rowspan=2 | 22

|- style="height:2em" | rowspan=3 | Re-elected in 1918. | rowspan=3 | 19 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 20 | rowspan=3 | Elected in 1920. | rowspan=7 nowrap | Mar 4, 1921 –
Mar 3, 1933 | rowspan=7 Template:Party shading/Democratic | Democratic | rowspan=7 align=right |File:EdwinSBroussard.jpg
Edwin S. Broussard ! rowspan=7 | 23

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 | Re-elected in 1924.Template:PbLost renomination. | rowspan=3 | 20 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=4 | 21 | rowspan=4 | Re-elected in 1926.Template:PbLost renomination.

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | colspan=3 | Vacant | nowrap | Mar 4, 1931 –
Jan 25, 1932 |   | rowspan=6 | 21 | rowspan=2 Template:List of United States senators Congress

|- style="height:2em" ! rowspan=3 | 21 | rowspan=3 align=left | File:Huey Long (cropped).jpg
Huey Long | rowspan=3 Template:Party shading/Democratic | Democratic | rowspan=3 nowrap | Jan 25, 1932 –
Sep 10, 1935 | rowspan=3 | Elected in 1930, but continued to serve as Louisiana governor until Jan 25, 1932.Template:PbAssassinated.

|- style="height:2em" | Template:List of United States senators Congress | rowspan=5 | 22 | rowspan=5 | Elected in 1932. | rowspan=10 nowrap | Mar 4, 1933 –
May 14, 1948 | rowspan=10 Template:Party shading/Democratic | Democratic | rowspan=10 align=right | File:John Overton.jpg
John Overton ! rowspan=10 | 24

|- style="height:2em" | rowspan=3 Template:List of United States senators Congress

|- style="height:2em" | colspan=3 | Vacant | nowrap | Sep 10, 1935 –
Jan 31, 1936 |  

|- style="height:2em" ! 22 | align=left | File:RoseLong.jpg
Rose M. Long | Template:Party shading/Democratic | Democratic | nowrap | Jan 31, 1936 –
Jan 3, 1937 | Appointed to continue her husband's term.Template:PbElected in 1936 to finish her husband's term.Template:SfnTemplate:PbRetired.

|- style="height:2em" ! rowspan=21 | 23 | rowspan=21 align=left | File:AllenJosephEllender.jpg
Allen Ellender | rowspan=21 Template:Party shading/Democratic | Democratic | rowspan=21 nowrap | Jan 3, 1937 –
July 27, 1972 | rowspan=3 | Elected in 1936. | rowspan=3 | 22 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 23 | rowspan=3 | Re-elected in 1938.

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=6 | Re-elected in 1942. | rowspan=6 | 23 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=6 | 24 | rowspan=2 | Re-elected in 1944.Template:PbDied.

|- style="height:2em" | rowspan=4 Template:List of United States senators Congress

|- style="height:2em" |   | nowrap | May 14, 1948 –
May 18, 1948 | colspan=3 | Vacant

|- style="height:2em" | Appointed to continue Overton's term.Template:PbRetired when elected successor qualified. | nowrap | May 18, 1948 –
Dec 30, 1948 | Template:Party shading/Democratic | Democratic | align=right | File:William Feazel.jpg
William C. Feazel ! 25

|- style="height:2em" | rowspan=2 | Elected to finish Overton's term. | rowspan=23 nowrap | Dec 31, 1948 –
Jan 3, 1987 | rowspan=23 Template:Party shading/Democratic | Democratic | rowspan=23 align=right | File:Russell Billiu Long.jpg
Russell Long ! rowspan=23 | 26

|- style="height:2em" | rowspan=3 | Re-elected in 1948. | rowspan=3 | 24 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 25 | rowspan=3 | Re-elected in 1950.

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 | Re-elected in 1954. | rowspan=3 | 25 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 26 | rowspan=3 | Re-elected in 1956.

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 | Re-elected in 1960. | rowspan=3 | 26 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 27 | rowspan=3 | Re-elected in 1962.

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 | Re-elected in 1966.Template:PbDied. | rowspan=6 | 27 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=6 | 28 | rowspan=6 | Re-elected in 1968.

|- style="height:2em" | rowspan=4 Template:List of United States senators Congress

|- style="height:2em" | colspan=3 | Vacant | nowrap | Jul 27, 1972 –
Aug 1, 1972 |  

|- style="height:2em" ! 24 | align=left | File:Elaine Edwards (D-LA).jpg
Elaine Edwards | Template:Party shading/Democratic | Democratic | nowrap | Aug 1, 1972 –
Nov 13, 1972 | Appointed by her husband to continue Ellender's term.Template:PbRetired when successor qualified and resigned early.

|- style="height:2em" ! rowspan=13 | 25 | rowspan=13 align=left | File:Sen. J. Bennett Johnston.jpg
J. Bennett Johnston | rowspan=13 Template:Party shading/Democratic | Democratic | rowspan=13 nowrap | Nov 14, 1972 –
Jan 3, 1997 | Appointed to finish Ellender's term, having already been elected to the next term.

|- style="height:2em" | rowspan=3 | Elected in 1972. | rowspan=3 | 28 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 29 | rowspan=3 | Re-elected in 1974.

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 | Re-elected in 1978. | rowspan=3 | 29 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 30 | rowspan=3 | Re-elected in 1980.Template:PbRetired.

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 | Re-elected in 1984. | rowspan=3 | 30 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 31 | rowspan=3 | Elected in 1986. | rowspan=9 nowrap | Jan 3, 1987 –
Jan 3, 2005 | rowspan=9 Template:Party shading/Democratic | Democratic | rowspan=9 align=right | File:John Breaux, official photo portrait, standing.jpg
John Breaux ! rowspan=9 | 27

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|- style="height:2em" | rowspan=3 | Re-elected in 1990.Template:PbRetired. | rowspan=3 | 31 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 32 | rowspan=3 | Re-elected in 1992.

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|- style="height:2em" ! rowspan=9 | 26 | rowspan=9 align=left | File:Mary Landrieu Senate portrait.jpg
Mary Landrieu | rowspan=9 Template:Party shading/Democratic | Democratic | rowspan=9 nowrap | Jan 3, 1997 –
Jan 3, 2015 | rowspan=3 | Elected in 1996. | rowspan=3 | 32 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 33 | rowspan=3 | Re-elected in 1998.Template:PbRetired.

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=3 | Re-elected in 2002 in runoff election. | rowspan=3 | 33 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 34 | rowspan=3 | Elected in 2004. | rowspan=6 nowrap | Jan 3, 2005 –
Jan 3, 2017 | rowspan=6 Template:Party shading/Republican | Republican | rowspan=6 align=right | File:DVitterOfficial.jpg
David Vitter ! rowspan=6 | 28

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|- style="height:2em" | rowspan=3 | Re-elected in 2008.Template:PbLost re-election. | rowspan=3 | 34 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 35 | rowspan=3 | Re-elected in 2010.Template:PbRetired.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

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|- style="height:2em" ! rowspan=6 | 27 | rowspan=6 align=left | File:Bill Cassidy official Senate photo (cropped).jpg
Bill Cassidy | rowspan=6 Template:Party shading/Republican | Republican | rowspan=6 nowrap | Jan 3, 2015 –
present | rowspan=3 | Elected in 2014 in runoff election. | rowspan=3 | 35 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 | 36 | rowspan=3 | Elected in 2016 in runoff election. | rowspan=6 nowrap | Jan 3, 2017 –
present | rowspan=6 Template:Party shading/Republican | Republican | rowspan=6 align=right | File:John Neely Kennedy, official portrait, 115th Congress.jpg
John Kennedy ! rowspan=6 | 29

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|- style="height:2em" | rowspan=3 | Re-elected in 2020. | rowspan=3 | 36 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | rowspan=3 |37 | rowspan=3 | Re-elected in 2022.

|- style="height:2em" | Template:List of United States senators Congress

|- style="height:2em" | rowspan=2 colspan=5 | To be determined in the 2026 election. | rowspan=2 | 37 | Template:List of United States senators Congress

|- style="height:2em" | Template:List of United States senators Congress | 38 | colspan=5 | To be determined in the 2028 election.

See also

• List of United States representatives from Louisiana
• United States congressional delegations from Louisiana
• Elections in Louisiana

References

• Template:Cite book
• Template:Cite book