UK girl's name
Cassidie
A feminine name of Celtic origin meaning "curly-haired".
For 2026, the newest official UK baby-name figures on this page are from 2009. That release is the current official benchmark rather than a forecast.
Cassidie is a girl's name in the UK records. People looking for Cassidie popularity in 2026 should use the latest official release, which is 2009 in this profile. In that release it ranked #5556, with 3 babies registered with the name. Its strongest year in the published records was 2009, with 3 births.
This profile covers 3 England and Wales registrations across 1 recorded years from 2009 to 2009. The figures come from ONS England and Wales, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.
Cassidie is at its recorded peak in the England and Wales series.
We estimate that about 3 living people in the UK are called Cassidie. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2010 or 2026.
Key insights
- • Cassidie ranked #5556 for girls in England and Wales in 2009, with 3 registrations.
- • The name peaked in 2009, when 3 girls were registered as Cassidie.
- • About 3 living people in the UK are estimated to have Cassidie as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#5556
2009
Births in 2009
3
Latest year
Peak year
2009
3 births
Estimated living
3
2026
Meaning
What does Cassidie mean?
The name Cassidie is believed to have originated as a feminine form of the ancient Roman name Cassidius. Cassidius was derived from the Latin word "cassida," which referred to a type of helmet or head covering worn by soldiers in ancient times. The name Cassidius likely indicated strength, protection, or a connection to the military.
In the early centuries of the Roman Empire, the name Cassidius was occasionally bestowed upon male children, though it was not a particularly common name. Records from this period are scarce, but there are mentions of individuals with the name Cassidius in various inscriptions and official documents.
As the Roman Empire expanded and its influence spread, the name Cassidius began to appear in other regions, sometimes with slight variations in spelling or pronunciation. In parts of Gaul (modern-day France), for example, the name may have been rendered as Cassidie or Cassidié.
One of the earliest known individuals to bear a variation of this name was Cassidie of Carthage, a Christian martyr who lived in the 3rd century AD. According to historical accounts, Cassidie was a young woman who refused to renounce her faith during the persecution of Christians under the Roman Emperor Valerian. She was executed for her beliefs, and her story became a source of inspiration for early Christians.
In the Middle Ages, the name Cassidie gained some popularity among certain noble families in parts of Europe. Notable examples include Cassidie de Montfort (c. 1145-1198), a noblewoman from France who was involved in the Third Crusade, and Cassidie of Brabant (c. 1215-1273), a Countess of Holland and Zeeland.
During the Renaissance period, the name Cassidie appeared occasionally in various literary works and historical records. One notable figure was Cassidie Borgia (1499-1519), an Italian noblewoman and daughter of the infamous Lucrezia Borgia. Cassidie Borgia was known for her beauty and intelligence, and she was involved in various political intrigues of the time.
In the 17th and 18th centuries, the name Cassidie remained relatively uncommon, but it did appear in some historical records and literary works. For example, Cassidie de la Baume (1618-1689) was a French noblewoman and author who wrote a memoir detailing her experiences during the Fronde, a series of civil wars in France.
Overall, while not a widely popular name throughout history, Cassidie and its variations have been present in various cultures and time periods, often associated with nobility, strength, and resilience. Its origins in the ancient Roman name Cassidius have given it a sense of historical significance and a connection to the military heritage of the Roman Empire.
Sourced from namecensus.com.
Decades
Cassidie by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Cassidie was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.
| Decade | Average rank | Total births | Years covered |
|---|---|---|---|
| 2000s | #5556 | 3 | 1 |
Related
Names similar to Cassidie
- Chloe 111,265
- Charlotte 88,733
- Caitlin 28,931
- Courtney 23,162
- Chelsea 13,049
- Clara 9,435
- Connie 8,402
- Catherine 8,376
- Charlie 7,964
- Cerys 7,506
- Casey 7,018
- Cara 6,375
FAQ
Cassidie: questions and answers
How popular is the name Cassidie in the UK right now?
In 2009, Cassidie was ranked #5556 for girls in England and Wales, with 3 births registered.
When was Cassidie most popular?
The peak year on record was 2009, with 3 babies registered as Cassidie in England and Wales.
What is the meaning and origin of Cassidie?
A feminine name of Celtic origin meaning "curly-haired".
How many people are called Cassidie in the UK?
A total of 3 babies have been registered as Cassidie across the 1 years of ONS England & Wales records shown here.
Which records is this page based on?
The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.