Is Sir a boy or girl name?

Sir is a boy’s name. Of the 2,172 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Sir

Recorded 1967–2025 · United States

Sir was most popular in 2021, when 123 American babies were given the name — ranking #3,071 that year. In 2025 it ranked #4,625, with 66 births. Across 1880–2025 the Social Security Administration has recorded 2,172 people named Sir.

Sir over time

Births per year. The dot marks Sir’s peak in 2021. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Sir a boy’s or a girl’s name?

Across the whole record Sir is a boy’s name — 0.0% of the 2,172 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 Sir

Where Sir is most concentrated

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

Explore further

See Sir on the interactive charts

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