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Kainalu
BoyMeaning of Kainalu: Hawaiian: 'ocean wave'
Kainalu is a boy's name most strongly associated with Hawaiian naming. It has 7 letters and 3 syllables, and it is a genuinely rare and unique choice — 5726th most popular boys' name in the United States in 2025.
US rank 2025
#5726
15 babies in 2025
England & Wales 2024
—
Fewer than 3 babies or unlisted
US babies since 1880
667
First recorded 1991 · peak 2003
Trend
stable
Style: rare
Popularity over time
Gender split
100% boys · 0% girls, based on US, UK and international usage.
Origins & cultures
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