Is Cecilio a boy or girl name?

Cecilio is a boy’s name. Of the 2,411 Americans recorded with the name since 1880, 0.0% were girls and 100.0% were boys.

Name Legacy

Cecilio

Recorded 1909–2025 · United States

Cecilio was most popular in 1998, when 39 American babies were given the name — ranking #5,291 that year. In 2025 it ranked #17,163, with 9 births. Across 1880–2025 the Social Security Administration has recorded 2,411 people named Cecilio.

Cecilio over time

Births per year. The dot marks Cecilio’s peak in 1998. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Cecilio a boy’s or a girl’s name?

Across the whole record Cecilio is a boy’s name — 0.0% of the 2,411 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 Cecilio

Where Cecilio is most concentrated

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

Explore further

See Cecilio on the interactive charts

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