Louis

“Famous in battle” — Frankish via French origin

Boy's name · #249 in the US (2025) · Timeless

Louis has appeared in US records since 1880 — best rank #18 (1882) · 406,470 babies named Louis all-time · 1 in 1,200 boys born in 2025.

Around the world: #5 in France (2025) · #7 in Belgium (2025) · #7 in Switzerland (2024) · #31 in Canada (2024) · #34 in New Zealand (2025).

Appears in 2020-2025 birth records of 49 states. See the full state-by-state map on this page.

Famous Louises

Louis Pasteur — French chemist and microbiologist (1822-1895)
Louis XIV of France — King of France and of Navarre from 1643 to 1715 (1638-1715)
Louis Armstrong — American jazz musician, trumpeter and singer (1901–1971)
Louis XVI of France — King of France and Navarre from 1774 to 1791, then King of the French from 1791 to 1792 (1754-1793)
Louis XV of France — King of France and of Navarre from 1715 to 1774 (1710–1774)

In stories & tradition

Louis de Pointe du Lac — The Vampire Chronicles
Louis Wu — Ringworld · Ringworld series
Louis Napoleon — Captain Tsubasa: World Youth Hen · Captain Tsubasa

What Louises become

Among 12,068 notable people named Louis:

Military figures appear 2.85× more often than among typical names — e.g. Louis Mountbatten, 1st Earl Mountbatten of Burma, British statesman and naval officer (1900-1979).

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