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Kaio
BoyMeaning of Kaio: Hawaiian: 'the sea'
Kaio is a boy's name most strongly associated with Hawaiian naming. It has 4 letters and 1 syllable, and it is familiar but far from overused — 4444th most popular boys' name in the United States in 2025 and 2263rd in England & Wales.
US rank 2025
#4444
22 babies in 2025
England & Wales 2024
#2263
10 babies in 2024
US babies since 1880
429
First recorded 1993 · peak 2024
Trend
rising
Style: uncommon
Popularity over time
Gender split
100% boys · 0% girls, based on US, UK and international usage.
Origins & cultures
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