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Cai
BoyMeaning of Cai: Latin: 'rejoice'
Cai is a boy's name most strongly associated with Welsh naming. It has 3 letters and 1 syllable, and it is familiar but far from overused — 1909th most popular boys' name in the United States in 2025 and 664th in England & Wales.
US rank 2025
#1909
81 babies in 2025
England & Wales 2024
#664
56 babies in 2024
US babies since 1880
1,945
First recorded 1989 · peak 2022
Trend
stable
Style: uncommon
Popularity over time
Gender split
75% boys · 25% girls, based on US, UK and international usage.
Origins & cultures
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