Is Keilyn a boy or girl name?

Keilyn is mostly a girl’s name. Of the 1,448 Americans recorded with the name since 1880, 83.7% were girls and 16.3% were boys.

Name Legacy

Keilyn

Recorded 1988–2025 · United States

Keilyn was most popular in 2011, when 82 American babies were given the name — ranking #3,971 that year. In 2025 it ranked #7,878, with 30 births. Across 1880–2025 the Social Security Administration has recorded 1,448 people named Keilyn.

Keilyn over time

Births per year. The dot marks Keilyn’s peak in 2011. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Keilyn a boy’s or a girl’s name?

Across the whole record Keilyn is mostly a girl’s name — 83.7% of the 1,448 Americans given it were girls and 16.3% were boys. In births since 2016 it is 87% girls and 13% 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 Keilyn

Where Keilyn is most concentrated

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

Explore further

See Keilyn on the interactive charts

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