Is Gaius a boy or girl name?

Gaius is a boy’s name. Of the 529 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Gaius

Recorded 1920–2025 · United States

Gaius was most popular in 2014, when 42 American babies were given the name — ranking #6,284 that year. In 2025 it ranked #7,732, with 31 births. Across 1880–2025 the Social Security Administration has recorded 529 people named Gaius.

Gaius over time

Births per year. The dot marks Gaius’s peak in 2014. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Gaius a boy’s or a girl’s name?

Across the whole record Gaius is a boy’s name — 0.0% of the 529 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 Gaius

Explore further

See Gaius on the interactive charts

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