Is Fionna a boy or girl name?

Fionna is a girl’s name. Of the 738 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Fionna

Recorded 1971–2025 · United States

Fionna was most popular in 2012, when 41 American babies were given the name — ranking #6,487 that year. In 2025 it ranked #22,044, with 6 births. Across 1880–2025 the Social Security Administration has recorded 738 people named Fionna.

Fionna over time

Births per year. The dot marks Fionna’s peak in 2012. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Fionna a boy’s or a girl’s name?

Across the whole record Fionna is a girl’s name — 100.0% of the 738 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 Fionna

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See Fionna on the interactive charts

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