Boy’s name · Welsh, Germanic, English

Lewis

How to say it: LOO-iss · /ˈluɪs/

Welsh/English form of Louis; from Germanic 'Hlodwig', meaning famous warrior or renowned in battle.

Lewis was the 429th most popular boys’ name in the United States in 2025, given to 736 babies (Social Security Administration). Its busiest decade was the 1880s, its births are up about 48% in ten years, and it is projected to rise to #345 by 2030.

Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures

#429for boys in 2025
1 in 4,504US babies
736born in 2025
#345projected for 2030
1880sits peak decade
1 in 188chance a classmate shares it

Key facts

Key facts about Lewis
Rank among boys’ names, 2025#429
Babies born in 2025736
Share of births1 in 4,504
Peak decade1880s
Change over 10 years+48%
Projected rank for 2030 (estimate)#345
In France, 2025#240 among boys’ names, 230 births

Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.

Its life, decade by decade

Far from its high in the 1880s, Lewis remains in steady use. Below that peak today, a gentle lift looks due next.

1900195020002020–25
Peak: 3,967 per million births, 1880s.

What goes with it

Gentle through soft sounds and breathy air, it feels steady and familiar. Henry stands comfortably near it.

In the classroom

In a class of 25 children born in 2025, the chance that another child is called Lewis is about 1 in 188.

Around the world

This spelling is used in English, French, German, Scottish Gaelic, Welsh.

In France: #240 for boys in 2025.

England and Wales: #231. Ireland: #454.

Famous people named Lewis

From Wikidata and Wikipedia

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