Kassidy
How to say it: KASS-ih-dee · /ˈkæsɪdi/
Variant of Cassidy; from Irish O'Cassidy, meaning descendant of Caiside, possibly from 'cas' (curly-haired).
Kassidy was the 404th most popular girls’ name in the United States in 2025, given to 240 babies (Social Security Administration). Its busiest decade was the 2000s, its births are down about 58% in ten years, and it is projected to slip to #541 by 2030.
Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures
Key facts
| Rank among girls’ names, 2025 | #404 |
|---|---|
| Babies born in 2025 | 240 |
| Share of births | 1 in 4,154 |
| Peak decade | 2000s |
| Change over 10 years | −58% |
| Projected rank for 2030 (estimate) | #541 |
| In France, 2025 | #894 among girls’ names, 10 births |
Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.
Its life, decade by decade
Mostly heard in recent decades, Kassidy topped out in the 2000s. After dropping well off that crest, more decline appears ahead.
What goes with it
Crisp attack plus hissing softness gives Kassidy a lively bounce. Mackenzie pairs with similar energy.
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Kassidy is about 1 in 174.
Around the world
This spelling is used in English, French, Irish.
In France: #894 for girls in 2025.
Famous people named Kassidy
- Kassidy Cook (born 1995)American diver
From Wikidata and Wikipedia
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