Is Sumiko a boy or girl name?

Sumiko is a girl’s name. Of the 618 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Sumiko

Recorded 1912–2011 · United States

Sumiko was most popular in 1927, when 39 American babies were given the name — ranking #2,273 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 618 people named Sumiko.

Sumiko over time

Births per year. The dot marks Sumiko’s peak in 1927. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Sumiko a boy’s or a girl’s name?

Across the whole record Sumiko is a girl’s name — 100.0% of the 618 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 Sumiko

Where Sumiko is most concentrated

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

Explore further

See Sumiko on the interactive charts

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