Namesakes
Louis Pasteur
(m) 1822-1895 
Notable Scientists and Inventors
Louis XIV the Sun King
(m) 1638-1715
Frankish and French Kings 1643-1715
Louis Armstrong
(m) 1901-1971
Notable Musicians
Louis XVI
(m) 1754-1793
Frankish and French Kings 1774-1792
Louis-Napoléon Bonaparte
(m) 1808-1873
French Presidents and Prime Ministers 1848-1852 (president)
Frankish and French Kings (Napoleon III) 1852-1870
Louis XV
(m) 1710-1774
Frankish and French Kings 1715-1774
Robert Louis Stevenson
(m) 1850-1894
Notable Writers
Clovis I
(a.k.a. Louis) (m) c. 466-c. 511
Frankish and French Kings 481-511
Joseph Louis Lagrange
(m) 1736-1813
Notable Philosophers and Thinkers
Louis IX
(m) 1214-1270
Frankish and French Kings 1226-1270
Saints
Louis I the Pious
(m) 778-840
Frankish and French Kings 813-840
German Kings and Holy Roman Emperors (Ludwig I the Pious) 813-840
Louis de Broglie
(m) 1892-1987
Nobel Prize Winners 1929 (physics)
Notable Scientists and Inventors
Jacques-Louis David
(m) 1748-1825
Notable Artists
Louis XIII
(m) 1601-1643
Frankish and French Kings 1610-1643
Louis XII of Orleans
(m) 1462-1515
Frankish and French Kings 1498-1515
Louis XVIII
(m) 1755-1824
Frankish and French Kings 1814-1824
Louis Braille
(m) 1809-1852
Notable Scientists and Inventors
Lewis XI
(a.k.a. Louis) (m) 1423-1483
Shakespearian Characters Henry VI (3)
Frankish and French Kings (Louis XI the Spider) 1461-1483
Joseph Louis Gay-Lussac
(m) 1778-1850
Notable Scientists and Inventors
Louis Philippe
(m) 1773-1850
Frankish and French Kings 1830-1848
Louis Daguerre
(m) 1787-1851
Notable Scientists and Inventors
Augustin-Louis Cauchy
(m) 1789-1857
Notable Philosophers and Thinkers
Leopold II
(middle name Louis) (m) 1835-1909
Other Royalty 1865-1909 Belgium (king)
Louis de Funès
(m) 1914-1983
Notable Actors and Entertainers (actor)
William, Prince of Wales
(middle name Louis) (m) 1982-
Other Royalty 1982- United Kingdom (prince)
Louis VII
(m) 1120-1180
Frankish and French Kings 1137-1180
Louis VIII the Lion
(m) 1187-1226
Frankish and French Kings 1223-1226
Shakespearian Characters (Louis the Dauphin) King John
Adolphe Thiers
(middle name Louis) (m) 1797-1877
French Presidents and Prime Ministers 1836; 1840; 1871-1873 (prime minister/president)
Louis-Ferdinand Céline
(m) 1894-1961
Notable Writers
Louis X
(m) 1289-1316
Frankish and French Kings 1314-1316
Georges-Louis Leclerc
(m) 1707-1788
Notable Scientists and Inventors
Charles Louis Alphonse Laveran
(m) 1845-1922
Nobel Prize Winners 1907 (medicine)
Notable Scientists and Inventors
Jack Kerouac
(middle name Louis) (m) 1922-1969
Notable Writers
Louis VI the Fat
(m) 1081-1137
Frankish and French Kings 1108-1137
Louis II the Stammerer
(m) 846-879
Frankish and French Kings 877-879
Philippe
(middle name Louis) (m) 1960-
Other Royalty 2013- Belgium (king)
Ludwig IV
(a.k.a. Louis) (m) 1282-1347
German Kings and Holy Roman Emperors 1314-1347
Louis Aragon
(m) 1897-1982
Notable Writers
Louis Néel
(m) 1904-2000
Nobel Prize Winners 1970 (physics)
Notable Scientists and Inventors
Lajos I the Great
(a.k.a. Louis) (m) 1326-1382
Hungarian Kings and Queens 1342-1382
Louis V the Indolent
(m) c. 967-987
Frankish and French Kings 986-987
Ludwik I
(a.k.a. Louis) (m) 1326-1382
Polish High Dukes and Kings 1370-1382
Louis Renault
(m) 1843-1918
Nobel Prize Winners 1907 (peace)
Luis I
(a.k.a. Louis) (m) 1707-1724
Spanish Kings and Queens 1724
Louis III
(m) 865-882
Frankish and French Kings 879-882
Leonard Bernstein
(a.k.a. Louis) (m) 1918-1990
Notable Musicians
Lajos II
(a.k.a. Louis) (m) 1506-1526
Hungarian Kings and Queens 1516-1526
Louis IV the Foreigner
(m) 920-954
Frankish and French Kings 936-954
Ludvík
(a.k.a. Louis) (m) 1506-1526
Bohemian Kings 1516-1526
George of Wales
(middle name Louis) (m) 2013-
Other Royalty 2013- United Kingdom (prince)
Jean-Marie Le Pen
(middle name Louis) (m) 1928-2025
Notable Politicians and Statespeople
Louis Antoine de Bougainville
(m) 1729-1811
Notable Explorers and Adventurers
Louis Blériot
(m) 1872-1936
Notable Scientists and Inventors
Louis Sullivan
(m) 1856-1924
Notable Artists
Joe Louis
(middle name Louis) (m) 1914-1981
Notable Athletes (boxing)
Louis van Gaal
(m) 1951-
Notable Athletes (soccer)
Paul Deschanel
(middle name Louis) (m) 1855-1922
French Presidents and Prime Ministers 1920 (president)
Clovis II
(a.k.a. Louis) (m) 637-655
Frankish and French Kings 639-655
Clovis IV
(a.k.a. Louis) (m) 682-695
Frankish and French Kings 691-695
Jean-Louis Trintignant
(m) 1930-2022
Notable Actors and Entertainers (actor)
Louis Tomlinson
(m) 1991-
Notable Musicians
Ludwig III the Child
(a.k.a. Louis) (m) 893-911
German Kings and Holy Roman Emperors 900-911
Hank Aaron
(middle name Louis) (m) 1934-2021
Hall-of-Famers 1982 (baseball)
Most Valuable Players 1957 baseball
Notable Athletes (baseball)
Edward, Duke of Edinburgh
(middle name Louis) (m) 1964-
Other Royalty 1964- United Kingdom (prince)
Alain Poher
(middle name Louis) (m) 1909-1996
French Presidents and Prime Ministers 1969; 1974 (president)
Jean, Grand Duke of Luxembourg
(middle name Louis) (m) 1921-2019
Other Royalty 1964-2000 Luxembourg (grand duke)
Lovis Corinth
(middle name Louis) (m) 1858-1925
Notable Artists
Louis Barthou
(m) 1862-1934
French Presidents and Prime Ministers 1913 (prime minister)
Louis B. Mayer
(m) 1884-1957
Notable Businesspeople
Notable Filmmakers
Louis of Wales
(m) 2018-
Other Royalty 2018- United Kingdom (prince)
Louis Ignarro
(m) 1941-
Nobel Prize Winners 1998 (medicine)
Clovis III
(a.k.a. Louis) (m) ?-676
Frankish and French Kings 675-676
Louis St. Laurent
(m) 1882-1973
Canadian Prime Ministers 1948-1957
Louis Gossett, Jr.
(m) 1936-2024
Notable Actors and Entertainers (actor)
Oscar Award Winners 1983 An Officer and a Gentleman (actor)
Louis C.K.
(m) 1967-
Notable Actors and Entertainers (comedian)
Martin Amis
(middle name Louis) (m) 1949-2023
Notable Writers
Louis-Eugène Cavaignac
(m) 1802-1857
French Presidents and Prime Ministers 1848 (prime minister)
Louis II, Prince of Monaco
(m) 1870-1949
Other Royalty 1922-1949 Monaco (prince)
Louis Jourdan
(m) 1921-2015
Notable Actors and Entertainers (actor)
Louis Chevrolet
(m) 1878-1941
Notable Businesspeople
Louis Renault
(m) 1877-1944
Notable Businesspeople
Jin Yong
(a.k.a. Louis) (m) 1924-2018
Notable Writers
Lou Gehrig
(m) 1903-1941
Hall-of-Famers 1939 (baseball)
Most Valuable Players 1927; 1936 baseball
Notable Athletes (baseball)
Louis-Jules Trochu
(m) 1815-1896
French Presidents and Prime Ministers 1870-1871 (prime minister)
Louis E. Brus
(m) 1943-
Nobel Prize Winners 2023 (chemistry)
Louis-Claude Daquin
(m) 1694-1772
Notable Musicians
Louis Gerhard De Geer
(m) 1818-1896
Swedish Prime Ministers 1876-1880
Charles de Freycinet
(middle name Louis) (m) 1828-1923
French Presidents and Prime Ministers 1879-1880; 1882; 1886; 1890-1892 (prime minister)
H. L. Mencken
(middle name Louis) (m) 1880-1956
Notable Journalists
Louis Calhern
(m) 1895-1956
Notable Actors and Entertainers (actor)
Louis Couperus
(m) 1863-1923
Notable Writers
Lou Costello
(a.k.a. Louis) (m) 1906-1959
Notable Actors and Entertainers (comedian)
Louis Vuitton
(m) 1821-1892
Notable Artists
Notable Businesspeople
Lou Diamond Phillips
(m) 1962-
Notable Actors and Entertainers (actor)
Émile Combes
(middle name Louis) (m) 1835-1921
French Presidents and Prime Ministers 1902-1905 (prime minister)
Lou Ferrigno
(m) 1951-
Notable Actors and Entertainers (actor)
Louis Herrey
(m) 1966-
Eurovision Song Contest Winners 1984 Sweden
Albert Hammond
(middle name Louis) (m) 1944-
Notable Musicians
Louis Ferdinand of Prussia
(m) 1907-1994
Other Royalty 1907-1994 Prussia (prince)
Louis Beel
(m) 1902-1977
Dutch Prime Ministers 1946-1948; 1958-1959
Joseph Lebeau
(middle name Louis) (m) 1794-1865
Belgian Prime Ministers 1831; 1840-1841
Louis of Thuringia
(m) 1200-1227
Saints
Louis Bromfield
(m) 1896-1956
Notable Writers
Pulitzer Award Winners 1927 Early Autumn
Louis Wain
(m) 1860-1939
Notable Artists
Louis Ferdinand of Prussia
(m) 1772-1806
Other Royalty 1772-1806 Prussia (prince)
Hervé
(a.k.a. Louis) (m) 1825-1892
Notable Musicians
Louis De Geer
(m) 1854-1935
Swedish Prime Ministers 1920-1921
Louis of Guyenne
(m) 1397-1415
Other Royalty 1397-1415 France (prince)
Shakespearian Characters (Louis the Dauphin) Henry V; King John
Louis Hofmann
(m) 1997-
Notable Actors and Entertainers (actor)
Louis-Mathieu Molé
(m) 1781-1855
French Presidents and Prime Ministers 1836-1839; 1848 (prime minister)
Ludwig of Prussia
(a.k.a. Louis) (m) 1773-1796
Other Royalty 1773-1796 Prussia (prince)
Joseph Pholien
(middle name Louis) (m) 1884-1968
Belgian Prime Ministers 1950-1952
Jules Renkin
(middle name Louis) (m) 1862-1934
Belgian Prime Ministers 1931-1932
Baudouin of Belgium
(middle name Louis) (m) 1869-1891
Other Royalty 1869-1891 Belgium (prince)
Ernest Courtot de Cissey
(middle name Louis) (m) 1810-1882
French Presidents and Prime Ministers 1874-1875 (prime minister)
Louis Buffet
(m) 1818-1898
French Presidents and Prime Ministers 1875-1876 (prime minister)
Louis of Toulouse
(m) 1274-1297
Saints
Larry Fine
(a.k.a. Louis) (m) 1902-1975
Notable Actors and Entertainers (actor/comedian)
Louis Clarke
(m) 1901-1977
Olympic Medalists 1924 4x100 m relay (gold)
Louis-Philippe of Belgium
(m) 1833-1834
Other Royalty 1833-1834 Belgium (prince)
Bob Boozer
(middle name Louis) (m) 1937-2012
Olympic Medalists 1960 basketball (gold)
Luis Bertrán
(a.k.a. Louis) (m) 1526-1581
Saints
Friedrich of Prussia
(middle name Louis) (m) 1794-1863
Other Royalty 1794-1863 Prussia (prince)
Louis Hennepin
(m) 1626-1705
Notable Explorers and Adventurers
Lewis Tewanina
(a.k.a. Louis) (m) 1888-1969
Olympic Medalists 1912 10000 m (silver)
Louis Glineur
(m) 1849-19xx
Olympic Medalists 1900 archery - à la pyramide (bronze)
Richard Denning
(a.k.a. Louis) (m) 1914-1998
Notable Actors and Entertainers (actor)
Albert Corey
(middle name Louis) (m) 1878-1926
Olympic Medalists 1904 4 mile team; marathon (silver)
Justin Baldoni
(middle name Louis) (m) 1984-
Notable Actors and Entertainers (actor)
Notable Filmmakers
Lew Cody
(a.k.a. Louis) (m) 1884-1934
Notable Actors and Entertainers (actor)
Louis Ruchonnet
(m) 1834-1893
Swiss Presidents 1883; 1890
Louis Wilkins
(m) 1882-1950
Olympic Medalists 1904 pole vault (bronze)
Lou Jones
(m) 1932-2006
Olympic Medalists 1956 4x400 m relay (gold)
Thomas Berger
(middle name Louis) (m) 1924-2014
Notable Writers
Louis Ferreira
(m) 1966-
Notable Actors and Entertainers (actor)
Luis Sotelo
(a.k.a. Louis) (m) 1574-1624
Saints
Élie Lescot
(middle name Louis) (m) 1883-1974
Haitian Presidents 1941-1946 (president)
Louis Borno
(m) 1865-1942
Haitian Presidents 1922-1930 (president)
Louis Handley
(m) 1874-1956
Olympic Medalists 1904 swimming - 4x50 yard freestyle relay (gold)
Louis Eugène Roy
(m) 1861-1939
Haitian Presidents 1930 (president)
Louis Kuehn
(m) 1901-1981
Olympic Medalists 1920 diving - springboard (gold)
Louis Smith
(m) 1989-
Olympic Medalists 2008; 2012 artistic gymnastics (bronze/silver)
Jean-Louis Pierrot
(m) 1761-1857
Haitian Presidents 1845-1846 (president)
Louis Martin
(m) 1875-19xx
Olympic Medalists 1900 swimming - 200 m team; swimming - 4000 m freestyle (bronze)
Louis Scott
(m) 1889-1960
Olympic Medalists 1912 3000 m team (gold)
Joe Caldwell
(middle name Louis) (m) 1941-
Olympic Medalists 1964 basketball (gold)
Louis Mandylor
(m) 1966-
Notable Actors and Entertainers (actor)
Sam Graddy III
(middle name Louis) (m) 1964-
Olympic Medalists 1984 100 m; 4x100 m relay (silver/gold)
Felix Calonder
(middle name Louis) (m) 1863-1952
Swiss Presidents 1918
Florvil Hyppolite
(a.k.a. Louis) (m) 1828-1896
Haitian Presidents 1889-1896 (president)
Louis Fierens
(m) 1875-1967
Olympic Medalists 1920 archery - moving target 28 m, team; archery - moving target 33 m, team; archery - moving target 50 m, team (silver/gold)
Lou Hudson
(m) 1944-2014
Hall-of-Famers 2022 (basketball)
Paul Genevay
(middle name Louis) (m) 1939-2022
Olympic Medalists 1964 4x100 m relay (bronze)
Charles Lelong
(middle name Louis) (m) 1891-1970
Olympic Medalists 1912 4x400 m relay (silver)
Julien Brule
(middle name Louis) (m) 1875-19xx
Olympic Medalists 1920 archery - moving target 28 m, team; archery - moving target 33 m; archery - moving target 33 m, team; archery - moving target 50 m; archery - moving target 50 m, team (bronze/gold/silver)
Louis Balbach
(m) 1896-1943
Olympic Medalists 1920 diving - springboard (bronze)
Louis Laufray
(m) 1881-1970
Olympic Medalists 1900 water polo (bronze)
Louis Van de Perck
(m) 1889-19xx
Olympic Medalists 1920 archery - large fixed target; archery - large fixed target, team; archery - small fixed target; archery - small fixed target, team (silver/gold)
Lysius Salomon
(a.k.a. Louis) (m) 1815-1888
Haitian Presidents 1879-1888 (president)
Louis Zorich
(m) 1924-2018
Notable Actors and Entertainers (actor)
Lou Brock
(m) 1939-2020
Hall-of-Famers 1985 (baseball)
Notable Athletes (baseball)
Louis Bonniot de Fleurac
(m) 1876-1965
Olympic Medalists 1908 3 mile team (bronze)
Louis Vernet
(m) 1870-1946
Olympic Medalists 1908 archery - continental style 50 m (silver)
Lou Boudreau
(m) 1917-2001
Hall-of-Famers 1970 (baseball)
Most Valuable Players 1948 baseball
Notable Athletes (baseball)
Louie Dampier
(m) 1944-
Hall-of-Famers 2014 (basketball)
Notable Athletes (basketball)
Louis Cartier
(m) 1875-1942
Notable Businesspeople
Louis W. Maxson
(m) 1855-1916
Olympic Medalists 1904 archery - team round (gold)
Louis Delcon
(m) ?-19xx
Olympic Medalists 1920 archery - moving target 28 m, team; archery - moving target 33 m, team; archery - moving target 50 m, team (silver/gold)
Louis Van Beeck
(m) ?-19xx
Olympic Medalists 1920 archery - moving target 28 m, team; archery - moving target 33 m, team; archery - moving target 50 m, team (silver/gold)
Louis Picamoles
(m) 1986-
Notable Athletes (rugby)
Robinson Stévenin
(a.k.a. Louis) (m) 1981-
Notable Actors and Entertainers (actor)
Jean-Louis Bonnard
(m) 1824-1852
Saints
Louis-Zéphirin Moreau
(m) 1824-1901
Saints
Manti Te'o
(middle name Louis) (m) 1991-
Notable Athletes (football)
Luigi Beltrame Quattrocchi
(a.k.a. Louis) (m) 1880-1951
Saints
Chuck Howley
(middle name Louis) (m) 1936-
Hall-of-Famers 2023 (football)
Lou Groza
(m) 1924-2000
Hall-of-Famers 1974 (football)
Lou Marson
(m) 1986-
Olympic Medalists 2008 baseball (bronze)
Ludovico Morbioli
(a.k.a. Louis) (m) 1433-1485
Saints
Hank Stram
(middle name Louis) (m) 1923-2005
Hall-of-Famers 2003 (football)
Heinrich of Prussia
(middle name Louis) (m) 1900-1904
Other Royalty 1900-1904 Prussia (prince)
Lou Creekmur
(m) 1927-2009
Hall-of-Famers 1996 (football)
Louis Santop
(m) 1889-1942
Hall-of-Famers 2006 (baseball)
Lou Carpenter
(a.k.a. Louis) (m)
Fictional Characters from Television 1985 Neighbours
Lou Rodriguez
(m)
Fictional Characters from Television 1984 Miami Vice
Louis Gardino
(m)
Fictional Characters from Television 1994 Due South
André-Louis Moreau
(m)
Fictional Characters from Books 1921 Scaramouche
Louis Trevelyan
(m)
Fictional Characters from Books 1869 He Knew He Was Right
Louis
(m) ?-855
Saints
Louis Onizuka Naisen
(m) ?-1626
Saints
Louis-Marie de Montfort
(m) 1673-1716
Saints
Louis Baba
(m) ?-1624
Saints
Louis Chakichi
(m) ?-1622
Saints
Louis Kawara
(m) ?-1622
Saints
Louis Maki
(m) ?-1627
Saints
Louis Nifaki
(m) ?-1628
Saints
Louis Someyon
(m) ?-1627
Saints
Luis Bertrán the Younger
(a.k.a. Louis) (m) ?-1627
Saints
Luis Flores
(a.k.a. Louis) (m) ?-1622
Saints
Luis Ibarachi
(a.k.a. Louis) (m) 1585-1597
Saints
Luis Sasanda
(a.k.a. Louis) (m) ?-1624
Saints