Is Oisin a boy or girl name?

Oisin is a boy’s name. Of the 513 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Oisin

Recorded 1991–2025 · United States

Oisin was most popular in 2020, when 31 American babies were given the name — ranking #7,571 that year. In 2025 it ranked #9,648, with 22 births. Across 1880–2025 the Social Security Administration has recorded 513 people named Oisin.

Oisin over time

Births per year. The dot marks Oisin’s peak in 2020. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Oisin a boy’s or a girl’s name?

Across the whole record Oisin is a boy’s name — 0.0% of the 513 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 Oisin

Explore further

See Oisin on the interactive charts

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