Is Niklaus a boy or girl name?

Niklaus is a boy’s name. Of the 2,430 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Name Legacy

Niklaus

Recorded 1979–2025 · United States

Niklaus was most popular in 2021, when 282 American babies were given the name — ranking #1,753 that year. In 2025 it ranked #2,958, with 130 births. Across 1880–2025 the Social Security Administration has recorded 2,430 people named Niklaus.

Niklaus over time

Births per year. The dot marks Niklaus’s peak in 2021. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Niklaus a boy’s or a girl’s name?

Across the whole record Niklaus is a boy’s name — 0.0% of the 2,430 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.

Names that peaked alongside Niklaus

Where Niklaus is most concentrated

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

Explore further

See Niklaus on the interactive charts

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