Kaio
Boy nameKaio has been given to 429 babies in the U.S. since 1993. It peaked in 2023. In 2025, about 1 in 77,640 boys was named Kaio.
Popularity over time births per year, 1880–2025
Total babies
429
Peak year
2023 (26 babies)
Rank in 2025
Below top 1000
First recorded
1993
10-year trend
▲ +144%
Gender split
All boys
Spellings & variants
Names one letter away from Kaio — alternate spellings parents actually use.
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Kaio.
FAQ
How popular is the name Kaio?
Kaio has been given to 429 babies in the U.S. since 1993. It ranked below the top 1000 in 2025.
When did the name Kaio peak?
Kaio peaked in 2023, when 26 babies were given the name.
Is Kaio a girl or boy name?
Kaio is primarily a boy name (100% of babies named Kaio are boys).
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