Is Kailen a boy or girl name?

Kailen is a unisex name. Of the 1,673 Americans recorded with the name since 1880, 43.5% were girls and 56.5% were boys. It changed hands in 2011, and has gone mainly to boys since.

Name Legacy

Kailen

Recorded 1983–2025 · United States

Kailen was most popular in 2008, when 71 American babies were given the name — ranking #4,512 that year. In 2025 it ranked #9,389, with 23 births. Across 1880–2025 the Social Security Administration has recorded 1,673 people named Kailen.

Kailen over time

Births per year. The dot marks Kailen’s peak in 2008. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Kailen a boy’s or a girl’s name?

Across the whole record Kailen is a unisex name — 43.5% of the 1,673 Americans given it were girls and 56.5% were boys. It changed hands: since 2011 it has gone mainly to boys, having gone mainly to girls before that. In births since 2016 it is 19% girls and 81% 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.

Names that peaked alongside Kailen

Where Kailen is most concentrated

How much more common the name is in each state than across the country as a whole.

California 4.9×

Explore further

See Kailen on the interactive charts

Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org