Is Dex a boy or girl name?

Dex is a boy’s name. Of the 658 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Dex

Recorded 1952–2025 · United States

Dex was most popular in 2016, when 43 American babies were given the name — ranking #6,185 that year. In 2025 it ranked #10,279, with 20 births. Across 1880–2025 the Social Security Administration has recorded 658 people named Dex.

Dex over time

Births per year. The dot marks Dex’s peak in 2016. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Dex a boy’s or a girl’s name?

Across the whole record Dex is a boy’s name — 0.0% of the 658 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 Dex

Explore further

See Dex on the interactive charts

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