Is Kilian a boy or girl name?

Kilian is a boy’s name. Of the 2,717 Americans recorded with the name since 1880, 1.0% were girls and 99.0% were boys.

Kilian

Recorded 1970–2025 · United States

Kilian was most popular in 2023, when 212 American babies were given the name — ranking #2,155 that year. In 2025 it ranked #2,392, with 177 births. Across 1880–2025 the Social Security Administration has recorded 2,717 people named Kilian.

Kilian over time

Births per year. The dot marks Kilian’s peak in 2023. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Kilian a boy’s or a girl’s name?

Across the whole record Kilian is a boy’s name — 1.0% of the 2,717 Americans given it were girls and 99.0% 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.

Names that peaked alongside Kilian

Where Kilian is most concentrated

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

Explore further

See Kilian on the interactive charts

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