Is Osa a boy or girl name?

Osa is mostly a girl’s name. Of the 770 Americans recorded with the name since 1880, 88.7% were girls and 11.3% were boys.

Name Legacy

Osa

Recorded 1880–2025 · United States

Osa was most popular in 1918, when 28 American babies were given the name — ranking #2,697 that year. In 2025 it ranked #17,163, with 9 births. Across 1880–2025 the Social Security Administration has recorded 770 people named Osa.

Osa over time

Births per year. The dot marks Osa’s peak in 1918. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Osa a boy’s or a girl’s name?

Across the whole record Osa is mostly a girl’s name — 88.7% of the 770 Americans given it were girls and 11.3% were boys. In births since 2016 it is 88% girls and 12% 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 Osa

Explore further

See Osa on the interactive charts

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