Is Dyllan a boy or girl name?

Dyllan is mostly a boy’s name. Of the 3,802 Americans recorded with the name since 1880, 13.2% were girls and 86.8% were boys.

Name Legacy

Dyllan

Recorded 1986–2025 · United States

Dyllan was most popular in 1999, when 187 American babies were given the name — ranking #1,862 that year. In 2025 it ranked #10,985, with 18 births. Across 1880–2025 the Social Security Administration has recorded 3,802 people named Dyllan.

Dyllan over time

Births per year. The dot marks Dyllan’s peak in 1999. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Dyllan a boy’s or a girl’s name?

Across the whole record Dyllan is mostly a boy’s name — 13.2% of the 3,802 Americans given it were girls and 86.8% were boys. In births since 2016 it is 27% girls and 73% 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 Dyllan

Where Dyllan is most concentrated

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

Explore further

See Dyllan on the interactive charts

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