Is Dorthea a boy or girl name?

Dorthea is a girl’s name. Of the 2,437 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Name Legacy

Dorthea

Recorded 1882–2025 · United States

Dorthea was most popular in 1921, when 69 American babies were given the name — ranking #1,668 that year. In 2025 it ranked #20,040, with 7 births. Across 1880–2025 the Social Security Administration has recorded 2,437 people named Dorthea.

Dorthea over time

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

Is Dorthea a boy’s or a girl’s name?

Across the whole record Dorthea is a girl’s name — 100.0% of the 2,437 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 Dorthea

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See Dorthea on the interactive charts

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