Is Sia a boy or girl name?

Sia is a girl’s name. Of the 2,795 Americans recorded with the name since 1880, 99.8% were girls and 0.2% were boys.

Sia

Recorded 1968–2025 · United States

Sia was most popular in 2025, when 215 American babies were given the name — ranking #2,108 that year. In 2025 it ranked #2,108, with 215 births. Across 1880–2025 the Social Security Administration has recorded 2,795 people named Sia.

Sia over time

Births per year. The dot marks Sia’s peak in 2025. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Sia a boy’s or a girl’s name?

Across the whole record Sia is a girl’s name — 99.8% of the 2,795 Americans given it were girls and 0.2% 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 Sia

Where Sia is most concentrated

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

Explore further

See Sia on the interactive charts

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