Is Lillyan a boy or girl name?

Lillyan is a girl’s name. Of the 2,426 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Name Legacy

Lillyan

Recorded 1906–2025 · United States

Lillyan was most popular in 2009, when 193 American babies were given the name — ranking #2,266 that year. In 2025 it ranked #13,540, with 13 births. Across 1880–2025 the Social Security Administration has recorded 2,426 people named Lillyan.

Lillyan over time

Births per year. The dot marks Lillyan’s peak in 2009. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Lillyan a boy’s or a girl’s name?

Across the whole record Lillyan is a girl’s name — 100.0% of the 2,426 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 Lillyan

Where Lillyan is most concentrated

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

Explore further

See Lillyan on the interactive charts

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