Girl’s name · English

Londyn

How to say it: LUN-dun · /ˈlʌndən/

Phonetic respelling of London; place name of uncertain Brittonic origin. Modern place-name given name variant.

Londyn was the 220th most popular girls’ name in the United States in 2025, given to 799 babies (Social Security Administration). Its busiest decade was the 2010s, its births are down about 69% in ten years, and it is projected to slip to #355 by 2030.

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

#220for girls in 2025
1 in 2,032US babies
799born in 2025
#355projected for 2030
2010sits peak decade
1 in 85chance a classmate shares it

Key facts

Key facts about Londyn
Rank among girls’ names, 2025#220
Babies born in 2025799
Share of births1 in 2,032
Peak decade2010s
Change over 10 years−69%
Projected rank for 2030 (estimate)#355

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

Its life, decade by decade

Born of recent use, Londyn peaked in the 2010s and remains near that point. A modest retreat seems ahead.

1900195020002020–25
Peak: 971 per million births, 2010s.

What goes with it

Smooth and soft in two syllables, Londyn works as a place name that carries easily across borders. Brooklynn and Emersyn share its modern sound.

Parents who love Londyn also love

Nicknames

  • Londy
  • Lon

Honouring a Londyn in the family

In the classroom

In a class of 25 children born in 2025, the chance that another child is called Londyn is about 1 in 85.

Around the world

This spelling is used in English.

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