Is Cassy a boy or girl name?

Cassy is a girl’s name. Of the 1,996 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Cassy

Recorded 1947–2019 · United States

Cassy was most popular in 1986, when 105 American babies were given the name — ranking #2,105 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 1,996 people named Cassy.

Cassy over time

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

Is Cassy a boy’s or a girl’s name?

Across the whole record Cassy is a girl’s name — 100.0% of the 1,996 Americans given it were girls and 0.0% were boys. In births since 2016 it is 100% girls and 0% 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 Cassy

Where Cassy is most concentrated

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

Explore further

See Cassy on the interactive charts

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