Louis
Boy nameLouis has been given to 409,317 babies in the U.S. since 1880. It peaked in 1921 and currently ranks #249 for boys (2025).
Meaning & origin /ˈluː.i/
From French Louis, from Middle French Loïs, Loïc, &c., from Old French Looïs, Luis, Lodhuvigs, Lodevis, Lodhwig, &c., from Latin Ludovicus, from Clodovicus, from Frankish *Hlūdawīg, from Proto-Germanic *hlūdaz (“loud; famous”) + *wīgą (“battle”). Doublet of Lewis (which is inherited since the Middle Ages) and, more remotely, Aloysius, Luis, Ludwig, Luigi, and Clovis.
Origin: French
Etymology adapted from Wiktionary, licensed CC BY-SA 4.0.
Popularity over time births per year, 1880–2025
Total babies
409,317
Peak year
1921 (7,296 babies)
Rank in 2025
#249 for boys
First recorded
1880
10-year trend
▲ +15%
Gender split
1% girls / 99% boys
Famous people named Louis
Louis Pasteur
French chemist and microbiologist (1822-1895)
Louis XIV of France
King of France and Navarre from 1643 to 1715 (1638-1715)
Louis Armstrong
American jazz musician, trumpeter and singer (1901–1971)
Napoleon III
President of the Second French Republic, Emperor of the Second French Empire and last monarch of France (1808–1873)
Notability data from Wikidata (CC0).
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Louis.
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