Kassidy means curly-haired — the K-double-S variant of Cassidy, from the Irish Gaelic cas (curly). Butch Cassidy is the Wild West's most charming outlaw. The K-and-double-S substitutions create maximum visual personalisation. Same Irish-curly heritage, same outlaw-charm, K-sharp calligraphy.
Irish Gaelic cas (curly) + suffix→Cassidy→K-SS variant Kassidy
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Irish Gaelic roots
Kassidy is the K-double-S variant of Cassidy from the Irish meaning curly-haired. Butch Cassidy is the Wild West's most charming outlaw. The K-and-double-S substitutions create maximum creative-spelling distinction.
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First recorded
Earliest known use: Modern K-double-S variant of Cassidy.
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Today
Kassidy remains a beloved choice, ranking #682 in the US. 21,463 babies have been named Kassidy since 1975.
◈ Sources: Behind the Name, SSA data
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How popular is Kassidy?
2000peak year
The name Kassidy reached its peak in 2000, with 1,007 registrations (ranked #314). It first surfaced in U.S. records in 1975, roughly 25 years before its peak. Since the peak, the name has eased to around #682 today, averaging about 475 new babies per year. Kassidy has been declining in recent years. Across all years on record, approximately 21,463 American babies have carried this name.
Year-by-year registrations1880–2024 · U.S. Social Security data
Kassidy's Life Path 5 is the adventurer's number — curly-haired adventure. People named Kassidy tend to be charming, sharp, and proud of their K-SS distinction.
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