Is Masako a boy or girl name?

Masako is a girl’s name. Of the 821 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Masako

Recorded 1909–1993 · United States

Masako was most popular in 1921, when 58 American babies were given the name — ranking #1,826 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 821 people named Masako.

Masako over time

Births per year. The dot marks Masako’s peak in 1921. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Masako a boy’s or a girl’s name?

Across the whole record Masako is a girl’s name — 100.0% of the 821 Americans given it were girls and 0.0% were 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 Masako

Where Masako is most concentrated

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

Explore further

See Masako on the interactive charts

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