Boy’s name · Welsh

Llewyn

How to say it: LOO-in · /ˈluːɪn/

Welsh llew meaning 'lion' - rare form related to Llewellyn, known from fictional folk singer Llewyn Davis.

Llewyn was the 3,360th most popular boys’ name in the United States in 2025, given to 25 babies (Social Security Administration). The 2020s are its busiest decade so far, its births are down about 23% in ten years, and it is projected to slip to #4,493 by 2030.

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

#3,360for boys in 2025
1 in 132,613US babies
25born in 2025
#4,493projected for 2030
2020sits peak decade
under 1 in 200chance a classmate shares it

Key facts

Key facts about Llewyn
Rank among boys’ names, 2025#3,360
Babies born in 202525
Share of births1 in 132,613
Peak decade2020s
Change over 10 years−23%
Projected rank for 2030 (estimate)#4,493

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

Its life, decade by decade

Llewyn is a newcomer: almost all of its history is from the last forty years.

1900195020002020–25
Peak: 26 per million births, 2020s.

What goes with it

Parents who love Llewyn also love

Nicknames

  • Llew
  • Wyn

In the classroom

In a class of 25 children born in 2025, the chance that another child is called Llewyn is about under 1 in 200.

Around the world

This spelling is used in English, Welsh.

Good to know

  • Llewyn is the title character of the Coen brothers' 2013 film Inside Llewyn Davis, a struggling Greenwich Village folk singer.

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