Is Niall a boy or girl name?

Niall is a boy’s name. Of the 2,094 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Niall

Recorded 1955–2025 · United States

Niall was most popular in 2024, when 110 American babies were given the name — ranking #3,347 that year. In 2025 it ranked #3,627, with 96 births. Across 1880–2025 the Social Security Administration has recorded 2,094 people named Niall.

Niall over time

Births per year. The dot marks Niall’s peak in 2024. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Niall a boy’s or a girl’s name?

Across the whole record Niall is a boy’s name — 0.0% of the 2,094 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 Niall

Where Niall is most concentrated

How much more common the name is in each state than across the country as a whole.

Explore further

See Niall on the interactive charts

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