Is Siera a boy or girl name?

Siera is a girl’s name. Of the 2,543 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Siera

Recorded 1983–2025 · United States

Siera was most popular in 1998, when 150 American babies were given the name — ranking #2,134 that year. In 2025 it ranked #20,040, with 7 births. Across 1880–2025 the Social Security Administration has recorded 2,543 people named Siera.

Siera over time

Births per year. The dot marks Siera’s peak in 1998. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Siera a boy’s or a girl’s name?

Across the whole record Siera is a girl’s name — 100.0% of the 2,543 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 Siera

Where Siera is most concentrated

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

Explore further

See Siera on the interactive charts

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