Kayo

♂ Boy

How to Pronounce Kayo

Pronounced KY-oh /ˈkaɪ.oʊ/Medium

Meaning: A modern name, variously echoing Kai (Hawaiian 'the sea'; Japanese 'forgiveness') and a Japanese-style -yo ending; no single fixed root; used for both sexes; here for boys; routes uncertainLow

In 30 seconds: A modern name: Kayo echoes Kai. Crisp, modern, and warm. Used for both sexes (here for boys; said 'KY-oh').

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Made for Kayo

Kayo

Custom knit blankets, embroidered with his name.

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Origin LowAmerican, Japanese

MeaningA modern name, variously echoing Kai (Hawaiian 'the sea'; Japanese 'forgiveness') and a Japanese-style -yo ending; no single fixed root; used for both sexes; here for boys; routes uncertain

U.S. rank (2025)#7433 ↘ Falling

2025 U.S. births11 boys (0.00% of U.S. boys)

Peak year2009

Total births (all-time)≈ 268

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Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Kayo is a modern name, with no single fixed root — variously echoing Kai (Hawaiian 'the sea'; Japanese 'forgiveness') and a Japanese-style -yo ending (routes uncertain, which we flag honestly). A crisp, modern name, used for both sexes, here for boys (slug distinguished; nickname Kai).

It registers thinly in records. Rare, a-modern-name, and crisp.

Did you know? Kayo is a modern name, variously echoing Kai (Hawaiian 'the sea'; Japanese 'forgiveness') and a Japanese-style -yo ending — a crisp, modern name, used for both sexes (here for boys; the routes are uncertain, which we note; said 'KY-oh').

Overall data confidence 32%

U.S. Social Security Administration name files — recent emergence

Variations

KaiyoKayohKai

Nicknames

Kai

Famous Bearers

Famous bearers coming soon.

If you like Kayo…

Kai— a name it echoes

Keo— a fellow short Asian-flavored boys' name

Ryo— another short Japanese boys' name

Taiyo— echoes that soft -yo sound

Kaisyn— a similarly popular pick

Explore names like Kayo

By themeuncertain coinage english unisex japanese

By meaningSea / Water

All themes →All meanings →All origins →

Frequently Asked

What does the name Kayo mean?

Kayo is a modern name echoing Kai ('the sea'); it has no single fixed meaning, so we flag it.

How do you pronounce Kayo?

It's said KY-oh /ˈkaɪ.oʊ/ — two syllables, stress on the first.

Is Kayo a boy or girl name?

Kayo is used for both sexes; this page covers its use as a boy's name.

How popular is Kayo?

Kayo is a very rare name in the U.S.