Is Kacper a boy or girl name?

Kacper is a boy’s name. Of the 1,102 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Kacper

Recorded 1994–2025 · United States

Kacper was most popular in 2007, when 88 American babies were given the name — ranking #3,885 that year. In 2025 it ranked #15,103, with 11 births. Across 1880–2025 the Social Security Administration has recorded 1,102 people named Kacper.

Kacper over time

Births per year. The dot marks Kacper’s peak in 2007. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Kacper a boy’s or a girl’s name?

Across the whole record Kacper is a boy’s name — 0.0% of the 1,102 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 Kacper

Where Kacper is most concentrated

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

Explore further

See Kacper on the interactive charts

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