Is Ilsa a boy or girl name?

Ilsa is a girl’s name. Of the 917 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Ilsa

Recorded 1943–2025 · United States

Ilsa was most popular in 2011, when 34 American babies were given the name — ranking #7,279 that year. In 2025 it ranked #9,648, with 22 births. Across 1880–2025 the Social Security Administration has recorded 917 people named Ilsa.

Ilsa over time

Births per year. The dot marks Ilsa’s peak in 2011. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Ilsa a boy’s or a girl’s name?

Across the whole record Ilsa is a girl’s name — 100.0% of the 917 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 Ilsa

Explore further

See Ilsa on the interactive charts

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