Boy’s name · American English, Hawaiian

Kailo

How to say it: KY-loh · /ˈkaɪloʊ/

Modern American coinage possibly from Hawaiian kai meaning sea; short punchy invention.

Kailo was the 1,577th most popular boys’ name in the United States in 2025, given to 79 babies (Social Security Administration). The 2020s are its busiest decade so far, its births are up 17-fold in ten years, and it is projected to rise to #1,071 by 2030.

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

#1,577for boys in 2025
1 in 41,966US babies
79born in 2025
#1,071projected for 2030
2020sits peak decade
under 1 in 200chance a classmate shares it

Key facts

Key facts about Kailo
Rank among boys’ names, 2025#1,577
Babies born in 202579
Share of births1 in 41,966
Peak decade2020s
Change over 10 years×17
Projected rank for 2030 (estimate)#1,071
In France, 2025#2,436 among boys’ names, 5 births

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

Its life, decade by decade

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

1900195020002020–25
Peak: 47 per million births, 2020s.

What goes with it

Nicknames

  • Kai
  • Kalo

Honouring a Kailo in the family

In the classroom

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

Around the world

This spelling is used in English.

In France: #2,436 for boys in 2025.

Good to know

  • One-letter variant of Kylo; Kylo Ren is the Star Wars sequel-trilogy villain

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