Cassidy Name Meaning, Origin and Popularity
Cassidy is predominantly used for girls. The statistics below show this exact spelling in official U.S. records.
How Do You Spell Cassidy?
Cassidy is spelled C-A-S-S-I-D-Y. The name has 7 letters.
Cassidy at a Glance
- Usage
- Predominantly used for girls
- Meaning
- Cassidy is derived from the Irish Gaelic Ó Caiside, meaning “descendant of Caiside.”
- Origin
- Cassidy is commonly associated with Irish origins, specifically linked to a Gaelic family name.
- Pronunciation
- kas-i-dee · 3 syllables
Cassidy Popularity in 2025
Rank#541
Recorded Births558
Rank#2,572
Recorded Births51
- Girls usage fell 63 places to #541 and recorded 88 fewer births compared with 2024.
- Boys usage fell 259 places to #2,572 and recorded 10 fewer births compared with 2024.
Figures reflect this exact spelling in the latest available U.S. Social Security Administration records. See the complete year-by-year trend.
What Does the Name Cassidy Mean?
Cassidy is derived from the Irish Gaelic Ó Caiside, meaning “descendant of Caiside.”
Origin: Cassidy is commonly associated with Irish origins, specifically linked to a Gaelic family name.
How Do You Pronounce Cassidy?
Pronunciationkas-i-dee
Syllables3
What Is the History of the Name Cassidy?
- History
- Cassidy has historically been used as an Irish surname before its adoption as a given name.
Cassidy Popularity by Year
The table below shows the most recent available records for this exact spelling from 2014 through 2025. Use the full history page to explore every recorded year.
| Year | Usage Category | Recorded Births | National Rank |
|---|---|---|---|
| 2025 | Girls | 558 | #541 |
| 2025 | Boys | 51 | #2,572 |
| 2024 | Girls | 646 | #478 |
| 2024 | Boys | 61 | #2,313 |
| 2023 | Girls | 620 | #495 |
| 2023 | Boys | 55 | #2,441 |
| 2022 | Girls | 661 | #478 |
| 2022 | Boys | 49 | #2,675 |
| 2021 | Girls | 655 | #478 |
| 2021 | Boys | 43 | #2,862 |
| 2020 | Girls | 765 | #411 |
| 2020 | Boys | 45 | #2,728 |
| 2019 | Girls | 865 | #368 |
| 2019 | Boys | 55 | #2,421 |
| 2018 | Girls | 869 | #361 |
| 2018 | Boys | 76 | #1,937 |
| 2017 | Girls | 1,003 | #326 |
| 2017 | Boys | 70 | #2,014 |
| 2016 | Girls | 1,123 | #289 |
| 2016 | Boys | 59 | #2,255 |
| 2015 | Girls | 1,236 | #257 |
| 2015 | Boys | 42 | #2,809 |
| 2014 | Girls | 1,311 | #247 |
| 2014 | Boys | 45 | #2,661 |
When Was Cassidy Most Popular?
Peak years are based on the highest recorded birth totals for this exact spelling and usage category. They are ordered by birth count, not chronologically.
1999 · Girls
3,395 recorded births
National rank #99
2000 · Girls
3,163 recorded births
National rank #107
1997 · Girls
3,143 recorded births
National rank #105
1998 · Girls
3,045 recorded births
National rank #113
Where Cassidy Ranked Highest in 2025
State rankings are calculated separately for girls and boys within each state. The SSA omits state-level names recorded fewer than five times, so low visible counts can still represent a relatively high state rank.
Top States for Girls
| State | Rank | Recorded Births |
|---|---|---|
| PA | #294 | 37 |
| CO | #317 | 19 |
| NJ | #348 | 23 |
| MI | #374 | 23 |
| VA | #413 | 19 |
| MA | #417 | 13 |
| LA | #426 | 10 |
| NV | #433 | 6 |