Is Blu a boy or girl name?

Blu is a unisex name. Of the 828 Americans recorded with the name since 1880, 39.0% were girls and 61.0% were boys. It changed hands in 2021, and has gone mainly to boys since.

Name Legacy

Blu

Recorded 1970–2025 · United States

Blu was most popular in 2021, when 86 American babies were given the name — ranking #3,893 that year. In 2025 it ranked #4,897, with 61 births. Across 1880–2025 the Social Security Administration has recorded 828 people named Blu.

Blu over time

Births per year. The dot marks Blu’s peak in 2021. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Blu a boy’s or a girl’s name?

Across the whole record Blu is a unisex name — 39.0% of the 828 Americans given it were girls and 61.0% were boys. It changed hands: since 2021 it has gone mainly to boys, having gone mainly to girls before that. In births since 2016 it is 42% girls and 58% 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 Blu

Explore further

See Blu on the interactive charts

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