UK name, mostly girls
Caelyn
A feminine name of Welsh origin meaning "masculine, slender, pure".
For 2026, the newest official UK baby-name figures on this page are from 2017. That release is the current official benchmark rather than a forecast.
Caelyn is mostly registered for girls in the UK records. People looking for Caelyn popularity in 2026 should use the latest official release, which is 2017 in this profile. In that release it ranked #5765, with 3 babies registered with the name. Its strongest year in the published records was 2009, with 7 births.
This profile covers 52 England and Wales registrations across 12 recorded years from 2005 to 2017. The figures come from ONS England and Wales and NRS Scotland, 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.
The latest count is about 43% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 61 living people in the UK are called Caelyn. 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 2018 or 2026.
Key insights
- • Caelyn ranked #5765 for girls in England and Wales in 2017, with 3 registrations.
- • The name peaked in 2009, when 7 girls were registered as Caelyn.
- • Caelyn ranks best in Scotland in the latest published regional snapshot for that area, where it placed #815 in 2012.
- • About 61 living people in the UK are estimated to have Caelyn as a first name, after adjusting past birth registrations with ONS life tables.
- • Across the England and Wales records shown here, 94.5% of Caelyn registrations are for girls.
Latest rank (E&W)
#5765
2017
Births in 2017
3
Latest year
Peak year
2009
7 births
Estimated living
61
2026
Gender
Boy and girl registrations for Caelyn
In England and Wales birth records, Caelyn has been registered for both boys and girls. Across the years shown here, 5.5% of registrations are for boys and 94.5% are for girls.
These figures use the sex categories in the published baby-name files. They are useful for spotting how the name is used at registration, but they are not a live measure of gender identity or everyone living with the name today.
Caelyn registered for boys
- Ranked #4,685 in 2013
- 3 boys registered in 2013
- Peak: 2013 (3 births)
Caelyn registered for girls
- Ranked #5,765 in 2017
- 3 girls registered in 2017
- Peak: 2009 (7 births)
Meaning
What does Caelyn mean?
The name Caelyn has its origins in the Celtic languages, specifically Welsh and Irish. It is a modern variation of the name Cailin, which is derived from the Old Irish word "cail" meaning "slender" or "young woman."
In Welsh, the name Caelyn is a feminine form of the name Cai, which was borne by one of King Arthur's legendary knights of the Round Table. The name Cai is thought to come from the Old Welsh word "cai" meaning "defensive enclosure" or "fortification."
The earliest recorded use of the name Caelyn is from the late 20th century, when it began to gain popularity as a baby name in English-speaking countries. It is often seen as a modern and unique variation of the more traditional names like Caitlin or Colleen.
While there are no historical records of famous individuals named Caelyn prior to the modern era, there have been a few notable people who have borne the name in recent times. One example is Caelyn Woolward, a Canadian actress born in 1995, known for her roles in television series such as "The Twilight Zone" and "The Stranger."
Another notable Caelyn is Caelyn Robinson, an Australian soccer player born in 1996, who has represented her country at the youth level and currently plays for the Newcastle Jets in the W-League.
In literature, the name Caelyn has been used as a character name in various works of fiction, such as the novel "The Seer and the Sword" by Victoria Hanley, where Caelyn is the name of the protagonist.
While the name Caelyn is relatively new and modern, its Celtic roots and connections to legendary figures like King Arthur's knight Cai, give it a sense of historical significance and a unique cultural heritage.
Sourced from namecensus.com.
Popularity
Caelyn over time
The chart below compares boys and girls registered as Caelyn in England and Wales, from 2005 to 2017. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Caelyn, the clearest high point is 2009. The latest England and Wales figure is 3 births in 2017, compared with 7 at the peak.
Babies born per year
Decades
Caelyn by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Caelyn 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 |
|---|---|---|---|
| 2010s | #4584 | 31 | 7 |
| 2000s | #4444 | 21 | 5 |
Geography
Where Caelyn is most common
The bars show the latest published local birth counts for Caelyn. They are useful for spotting where the name is showing up in real numbers, while the rank beside each bar shows how strongly it performs inside that region.
Caelyn ranks best in Scotland in the latest published regional snapshot for that area, where it placed #815 in 2012.
Across the UK
Caelyn in Scotland and Northern Ireland
Scotland (NRS)
#815 in 2012
3 years of NRS records, 9 total registered
Related
Names similar to Caelyn
- 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
Caelyn: questions and answers
How popular is the name Caelyn in the UK right now?
In 2017, Caelyn was ranked #5765 for girls in England and Wales, with 3 births registered.
When was Caelyn most popular?
The peak year on record was 2009, with 7 babies registered as Caelyn in England and Wales.
What is the meaning and origin of Caelyn?
A feminine name of Welsh origin meaning "masculine, slender, pure".
How many people are called Caelyn in the UK?
A total of 52 babies have been registered as Caelyn across the 12 years of ONS England & Wales records shown here, plus 9 more in Scotland.
Where is Caelyn most common?
In the latest published local rankings, Caelyn ranks best in Scotland, where it placed #815 in 2012. The regional bars on this page use birth counts, so they also reflect the size of each region.
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.