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Girl · Irish
Cassidy
Say it: KASS-ih-dee
Meaning
From the Irish surname Ó Caiside 'descendant of Caiside', a personal name of uncertain meaning; the gloss 'curly-haired' is unproven.
Uncertainseveral explanations, none settled.
Became a popular American girls' name in the 1990s.
Its wave through time
Most used in the 1990s
In the United States
- 61,152 babies given this name since 1968
- At its height in 1999, about 1 in 522 girls
- 807 babies in 2020
Through the ages
Used by
The family of the name
Other spellings: Cassady, Kassidy
Names worth a look
Where this comes from
- United States Social Security birth records, 1880 to today source
- United States Social Security birth records, 1880 to today source
Meanings and histories are compiled from the study of names and their languages and checked by a second review.
Meanings and histories are drawn from the study of names and their languages, each with a confidence rating; popularity figures come from official birth records. Name histories are a living field: if you know of a correction, we would be glad to hear it.