Cassidy
- Pronunciation
- [Ca-ssi-dy]
- Gender
- Male
- Meaning
- Clever
- Origin
- Gaelic
Cassidy Popularity Snapshot
Across the entire US Social Security Administration record (1880–2024), 3,684 baby boys have been named Cassidy. The name peaked in 1984 with 169 US births that year (rank #665). In 2024, ranked #2308 nationally — 1,643 places below its 1984 peak.
Top States for Cassidy
Based on 1910–2024 US SSA state-level records, the three states with the most Cassidy births are: California (440), Texas (144), New York (100).
Other Gaelic-Origin Names Like Cassidy
If you like Cassidy's Gaelic origin, consider these related names: Abboid, Ahern, Aibhlin, Aidan, Ailin. Browse all Gaelic names →
7-Letter Names Starting with C
Names with Cassidy's exact length and starting letter: Cadabyr, Cadassi, Cadence, Cadenza, Caedmon.
Quick Facts About Cassidy
US Popularity History (1999–2025)
Annual US births named Cassidy by gender, from US Social Security Administration records. Peak year: 1999 with 3,395 girls named Cassidy (girl rank #99 that year).
Where it stands today: in 2025, ranked #541 for girls (558 US births). That's 442 places below its 1999 peak.
Source: US Social Security Administration. Limitations: US birth-certificate data only; names appearing fewer than 5 times in a given year are suppressed for privacy; spelling variants are counted separately. For names that ranked outside the US top 100 before year 2000, only the years they reached the top 100 are shown — the chart may have gaps for less-popular historical names.
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Where in the US Is Cassidy Most Popular?
Average girl-name rank within each state across 2016–2025 SSA records. A lower number means the name appears closer to the top of that state's girls-name rankings — a per-capita measure that isn't biased toward large states. For Cassidy the strongest states are Delaware, Alaska, South Dakota.
Strongest girls-name states
| # | State | Avg rank | Births |
|---|---|---|---|
| 1 | Delaware | #151 | 25 |
| 2 | Alaska | #162 | 15 |
| 3 | South Dakota | #204 | 16 |
| 4 | Pennsylvania | #248 | 442 |
| 5 | New Mexico | #256 | 36 |
| 6 | New Jersey | #279 | 274 |
| 7 | Maryland | #304 | 188 |
| 8 | Michigan | #320 | 269 |
| 9 | West Virginia | #324 | 16 |
| 10 | Colorado | #324 | 159 |
Source: SSA state-level baby-name dataset 2016–2025. States with fewer than 3 years of data for Cassidy in this window are excluded. Births < 5 in a given state-year are suppressed by SSA for privacy.
Variant Forms
| Name | Meaning | Gender | Origin |
|---|---|---|---|
| Cass | Curly-Headed. | Male | Irish |
Looking for names like Cassidy?
A dedicated page with 60+ related names — spelling variants, rhymes, alliterations, same-origin matches, and shared meaning concepts — lives at its own URL so each kind of similarity gets a deeper treatment than fits here.
Compare Cassidy to Other Popular Names
Side-by-side popularity charts and crossover years for Cassidy against today's most popular girls-name peers (top 8 by US births in the last 10 years of SSA records).