Cassidy
Boy name · #2584 in 2025 · Very rare
How old is the name Cassidy? In official American birth records, Cassidy has been tracked continuously since 1968, giving it 57 years of documented American history.
Cassidy is currently the #2584 boy name in the United States — 51 babies received it in 2025. A decade ago it stood at #2809, so the name has been rising over the past ten years. Roughly one in every 35,294 boys born in 2025 was named Cassidy.
Babies named Cassidy per year. Source: Official national birth records.
The 57-year story
Cassidy first appears in the Social Security records in 1968, when 5 boys received the name. Its peak came in 1984, when 169 boys were named Cassidy — good for #665 that year. Today's parents encounter it as a name from their grandparents’ generation, which is precisely the vintage window from which names get revived. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Unlock the 5-year forecast and compare Cassidy against up to 5 other names.
Uniqueness: will there be another Cassidy in class?
On our rarity read — which blends how common Cassidy is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Cassidy will likely be the only one in the room, with the occasional spelling-out as the price.
Where Cassidy is most common
State-level data for Cassidy is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Cassidy
Statistically, parents drawn to Cassidy tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Courtney, Brenton, Korey, Cedrick, and Darnell.
CourtneyBrentonKoreyCedrickDarnellJarvisAntwanCortez
Rank history (last 25 years)
| Year | Babies named Cassidy | Rank |
|---|---|---|
| 2025 | 51 | #2572 |
| 2024 | 61 | #2313 |
| 2023 | 55 | #2441 |
| 2022 | 49 | #2675 |
| 2021 | 43 | #2862 |
| 2020 | 45 | #2728 |
| 2019 | 55 | #2421 |
| 2018 | 76 | #1937 |
| 2017 | 70 | #2014 |
| 2016 | 59 | #2255 |
| 2015 | 42 | #2809 |
| 2014 | 45 | #2661 |
| 2013 | 55 | #2299 |
| 2012 | 50 | #2488 |
| 2011 | 50 | #2478 |
| 2010 | 51 | #2429 |
| 2009 | 55 | #2348 |
| 2008 | 66 | #2088 |
| 2007 | 53 | #2416 |
| 2006 | 69 | #1943 |
| 2005 | 40 | #2701 |
| 2004 | 59 | #2024 |
| 2003 | 24 | #3626 |
| 2002 | 34 | #2755 |
| 2001 | 39 | #2489 |
Frequently asked questions
How old is the name Cassidy?
In official American birth records, the name Cassidy first appeared in 1968 (over 57 years ago), when 5 newborn boys received the name. It has been tracked in modern national records for 57 years.
Is Cassidy a popular boy name?
Cassidy ranked #2584 among boys in 2025 with 51 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2809.
When was the name Cassidy most popular?
Cassidy peaked in 1984, when 169 American boys received the name (ranked #665 that year). Since 1984 the name has declined from that high.
How rare is the name Cassidy?
In 2025, roughly 1 in 35,294 newborn American boys was named Cassidy. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.