Is Cosette a boy or girl name?

Cosette is a girl’s name. Of the 3,080 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Name Legacy

Cosette

Recorded 1912–2025 · United States

Cosette was most popular in 2015, when 141 American babies were given the name — ranking #2,792 that year. In 2025 it ranked #3,252, with 113 births. Across 1880–2025 the Social Security Administration has recorded 3,080 people named Cosette.

Cosette over time

Births per year. The dot marks Cosette’s peak in 2015. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Cosette a boy’s or a girl’s name?

Across the whole record Cosette is a girl’s name — 100.0% of the 3,080 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 Cosette

Where Cosette is most concentrated

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

Explore further

See Cosette on the interactive charts

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