Is Dillian a boy or girl name?

Dillian is a boy’s name. Of the 610 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Dillian

Recorded 1989–2021 · United States

Dillian was most popular in 1992, when 41 American babies were given the name — ranking #4,674 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 610 people named Dillian.

Dillian over time

Births per year. The dot marks Dillian’s peak in 1992. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Dillian a boy’s or a girl’s name?

Across the whole record Dillian is a boy’s name — 0.0% of the 610 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 Dillian

Explore further

See Dillian on the interactive charts

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