Cassidy: Meaning, Pronunciation and Origin
Cassidy is an Irish girl's name meaning “curly-haired.” Here’s how to say it, where it comes from, and names that go well with it.
Updated September 2026
- Meaning
- Curly-haired
- Gender
- Girl
- Popularity in Ireland
- No. 718 for girls (2025)
How do you pronounce Cassidy?
Cassidy is pronounced KASS-id-ee. It has three syllables, with the stress on the first.
What does Cassidy mean?
From cas “curly-haired.” The Cassidys were the hereditary physicians to the Maguires, the chiefs of County Fermanagh between 1300 and 1600. As their healing skills became widely known, many Cassidys were employed by other chieftains, particularly in the north of the country.
How popular is Cassidy in Ireland?
In 2025, 4 baby girls in Ireland were named Cassidy, which made it No. 718 that year. That's up from No. 896 ten years earlier. It was most popular in 2000, when 4 baby girls were named Cassidy, No. 465 that year. The most babies got the name in 2016: 5. It first appears in the records in 1999, with 3 baby girls.
See the numbers by year
| Year | Babies | Rank |
|---|---|---|
| 2025 | 4 | No. 718 |
| 2024 | 4 | No. 736 |
| 2022 | 3 | No. 905 |
| 2020 | 4 | No. 700 |
| 2019 | 3 | No. 871 |
| 2016 | 5 | No. 661 |
| 2015 | 3 | No. 896 |
| 2013 | 3 | No. 894 |
| 2011 | 3 | No. 937 |
| 2010 | 5 | No. 663 |
| 2009 | 5 | No. 641 |
| 2000 | 4 | No. 465 |
| 1999 | 3 | No. 528 |
Cassidy in Ogham
Ogham is the oldest way of writing Irish. It was carved along the edges of standing stones, mostly between the 4th and 6th centuries, and read from the bottom up. In later tradition each letter was named after a tree or plant. Here’s Cassidy, letter by letter.
- CColl, hazel
- AAilm, pine
- SSail, willow
- SSail, willow
- IIodhadh, yew
- DDair, oak
- IIodhadh, yew
Write any name in Ogham with our Ogham translator
Names that go with Cassidy
Questions about Cassidy
- How do you pronounce Cassidy?
- Cassidy is pronounced KASS-id-ee. Three syllables, stress on the first.
- What does Cassidy mean?
- Cassidy means “curly-haired.”
- Is Cassidy a girl's name or a boy's name?
- Cassidy is a girl's name.
- How popular is Cassidy in Ireland?
- In 2025, Cassidy was No. 718 for girls in Ireland, with 4 babies, according to the Central Statistics Office. It was most popular in 2000, at No. 465.