Louis Armstrong
— Noun
– English
～ United States pioneering jazz trumpeter and bandleader (1900-1971)
Louis
— Noun
– English
～ United States prizefighter who was world heavyweight champion for 12 years (1914-1981)
Louis Harold Gray
— Noun
– English
～ English radiobiologist in whose honor the gray (the SI unit of energy for the absorbed dose of radiation) was named (1905-1965)
Louis le Faineant
— Noun
– English
～ the last Carolingian king of France (967-987)
Louis Braille
— Noun
– English
～ French educator who lost his sight at the age of three and who invented a system of writing and printing for sightless people (1809-1852)
Louis IX
— Noun
– English
～ king of France and son of Louis VIII; he led two unsuccessful Crusades; considered an ideal medieval king (1214-1270)
Louis Antoine de Bougainville
— Noun
– English
～ French explorer who circumnavigated the globe accompanied by scientists (1729-1811)
Louis Leakey
— Noun
– English
～ English paleontologist whose account of fossil discoveries in Tanzania changed theories of human evolution (1903-1972)
Louis Jolliet
— Noun
– English
～ French explorer (with Jacques Marquette) of the upper Mississippi River valley (1645-1700)
Louis IV
— Noun
– English
～ king of France (921-954)
Louis III
— Noun
– English
～ son of Louis II and king of the France and Germany (863-882)
Louis Auchincloss
— Noun
– English
～ United States writer (born in 1917)
Louis le Hutin
— Noun
– English
～ king of France (1289-1316)
Louis Aragon
— Noun
– English
～ French writer who generalized surrealism to literature (1897-1982)
Louis II
— Noun
– English
～ king of France and Germany (846-879)
louis d'or
— Noun
– English
～ a former French gold coin
Louis Isadore Kahn
— Noun
– English
～ United States architect (born in Estonia) (1901-1974)
Louis Agassiz
— Noun
– English
～ United States naturalist (born in Switzerland) who studied fossil fish; recognized geological evidence that ice ages had occurred in North America (1807-1873)