Is Kailei a boy or girl name?

Kailei is a girl’s name. Of the 617 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Kailei

Recorded 1988–2024 · United States

Kailei was most popular in 2004, when 34 American babies were given the name — ranking #6,769 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 617 people named Kailei.

Kailei over time

Births per year. The dot marks Kailei’s peak in 2004. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Kailei a boy’s or a girl’s name?

Across the whole record Kailei is a girl’s name — 100.0% of the 617 Americans given it were girls and 0.0% were boys. In births since 2016 it is 100% girls and 0% 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 Kailei

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See Kailei on the interactive charts

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