Is Jacek a boy or girl name?

Jacek is a boy’s name. Of the 532 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Jacek

Recorded 1965–2025 · United States

Jacek was most popular in 2013, when 37 American babies were given the name — ranking #6,816 that year. In 2025 it ranked #24,763, with 5 births. Across 1880–2025 the Social Security Administration has recorded 532 people named Jacek.

Jacek over time

Births per year. The dot marks Jacek’s peak in 2013. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Jacek a boy’s or a girl’s name?

Across the whole record Jacek is a boy’s name — 0.0% of the 532 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 Jacek

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See Jacek on the interactive charts

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