Kain
Recorded 1973–2025 · United States
Kain was most popular in 2016, when 180 American babies were given the name — ranking #2,384 that year. In 2025 it ranked #3,686, with 94 births. Across 1880–2025 the Social Security Administration has recorded 3,750 people named Kain.
Kain over time
How old is the name Kain?
Kain first appears in Social Security Administration records in 1973, which makes it about 52 years old as a recorded American name. It has been recorded in 51 of the 53 years since.
How many people are named Kain?
The Social Security Administration has recorded 3,750 American births named Kain between 1880 and 2025. That is recorded US births, not a world population — it counts people issued a Social Security number at birth in the United States. Of those, roughly 3,694 are estimated to be alive today.
How many babies were named Kain in 2025?
94 American babies were named Kain in 2025, ranking #3,686 that year.
Is Kain getting more or less popular?
Kain is holding steady. Across 2021–2025 it averaged 110 births a year, against 135 a year across 2011–2015 — a change of -18% over the decade.
Measured on recorded births. American births overall have fallen since 2007, so most established names lose births over any recent decade — a name can shed births and still hold its rank. Compare the rank above, which is measured against the other names of the same year.
Is Kain a boy’s or a girl’s name?
Across the whole record Kain is a boy’s name — 0.0% of the 3,750 Americans given it were girls and 100.0% were boys. In births since 2016 it is 0% girls and 100% boys.
Counted from every US birth the Social Security Administration recorded under this name, so it reflects use rather than opinion. A name given to fewer than five babies of one sex in a year is withheld at source and is not counted.
How old is someone named Kain?
Roughly 3,694 Americans named Kain are alive today — 99% of everyone ever recorded with the name. The median is 15 years old, and half are between 9 and 24.
An estimate, not a count. Recorded births are carried forward through the Social Security Administration’s 2023 period life table, by age and sex. That table describes mortality in one recent year, so it credits the oldest cohorts with today’s survival rather than the harsher rates they actually lived through — the further back a name peaked, the more this will overstate how many remain. It counts people issued a Social Security number at birth, not immigrants who arrived later.
Where Kain is most concentrated
How much more common the name is in each state than across the country as a whole.
Explore further
See Kain on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org