Is Justo a boy or girl name?

Justo is a boy’s name. Of the 1,737 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Justo

Recorded 1890–2025 · United States

Justo was most popular in 1986, when 31 American babies were given the name — ranking #4,674 that year. In 2025 it ranked #18,449, with 8 births. Across 1880–2025 the Social Security Administration has recorded 1,737 people named Justo.

Justo over time

Births per year. The dot marks Justo’s peak in 1986. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Justo a boy’s or a girl’s name?

Across the whole record Justo is a boy’s name — 0.0% of the 1,737 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 Justo

Where Justo is most concentrated

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

Explore further

See Justo on the interactive charts

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