Is Masao a boy or girl name?

Masao is a boy’s name. Of the 1,018 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Masao

Recorded 1907–2019 · United States

Masao was most popular in 1918, when 81 American babies were given the name — ranking #1,468 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 1,018 people named Masao.

Masao over time

Births per year. The dot marks Masao’s peak in 1918. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Masao a boy’s or a girl’s name?

Across the whole record Masao is a boy’s name — 0.0% of the 1,018 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 Masao

Where Masao is most concentrated

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

Explore further

See Masao on the interactive charts

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