Is Lain a boy or girl name?

Lain is mostly a boy’s name. Of the 511 Americans recorded with the name since 1880, 5.3% were girls and 94.7% were boys.

Name Legacy

Lain

Recorded 1973–2025 · United States

Lain was most popular in 2004, when 26 American babies were given the name — ranking #8,127 that year. In 2025 it ranked #12,329, with 15 births. Across 1880–2025 the Social Security Administration has recorded 511 people named Lain.

Lain over time

Births per year. The dot marks Lain’s peak in 2004. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Lain a boy’s or a girl’s name?

Across the whole record Lain is mostly a boy’s name — 5.3% of the 511 Americans given it were girls and 94.7% were boys. In births since 2016 it is 5% girls and 95% 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 Lain

Explore further

See Lain on the interactive charts

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