Kayin
Boy nameKayin has been given to 630 babies in the U.S. since 1977. It peaked in 2005. In 2025, about 1 in 213,510 boys was named Kayin.
Popularity over time births per year, 1880–2025
Total babies
630
Peak year
2005 (39 babies)
Rank in 2025
Below top 1000
First recorded
1977
10-year trend
0%
Gender split
13% girls / 87% boys
Spellings & variants
Names one letter away from Kayin — alternate spellings parents actually use.
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Kayin.
Sibling name ideas for Kayin
Same era and popularity as Kayin, avoiding matching initials or rhymes.
FAQ
How popular is the name Kayin?
Kayin has been given to 630 babies in the U.S. since 1977. It ranked below the top 1000 in 2025.
When did the name Kayin peak?
Kayin peaked in 2005, when 39 babies were given the name.
Is Kayin a girl or boy name?
Kayin is primarily a boy name (87% of babies named Kayin are boys).
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