Is Lassie a boy or girl name?

Lassie is a girl’s name. Of the 979 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Lassie

Recorded 1883–1963 · United States

Lassie was most popular in 1916, when 42 American babies were given the name — ranking #2,000 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 979 people named Lassie.

Lassie over time

Births per year. The dot marks Lassie’s peak in 1916. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Lassie a boy’s or a girl’s name?

Across the whole record Lassie is a girl’s name — 100.0% of the 979 Americans given it were girls and 0.0% were 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 Lassie

Where Lassie is most concentrated

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

Tennessee 26.5×

Explore further

See Lassie on the interactive charts

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