UK boy's name
Caillen
For 2026, the newest official UK baby-name figures on this page are from 2012. That release is the current official benchmark rather than a forecast.
Caillen is a boy's name in the UK records. People looking for Caillen popularity in 2026 should use the latest official release, which is 2012 in this profile. In that release it ranked #4805, with 3 babies registered with the name. Its strongest year in the published records was 2008, with 3 births.
This profile covers 6 England and Wales registrations across 2 recorded years from 2008 to 2012. 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 100% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 9 living people in the UK are called Caillen. 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 2013 or 2026.
Key insights
- • Caillen ranked #4805 for boys in England and Wales in 2012, with 3 registrations.
- • The name peaked in 2008, when 3 boys were registered as Caillen.
- • Caillen ranks best in Scotland in the latest published regional snapshot for that area, where it placed #686 in 2015.
- • About 9 living people in the UK are estimated to have Caillen as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#4805
2012
Births in 2012
3
Latest year
Peak year
2008
3 births
Estimated living
9
2026
Popularity
Caillen over time
The chart below shows babies named Caillen registered in England and Wales in the years where the name appears in the published records, from 2008 to 2012. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Caillen, the clearest high point is 2008. The latest England and Wales figure is 3 births in 2012, compared with 3 at the peak.
Babies born per year
Decades
Caillen by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Caillen 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 | #4805 | 3 | 1 |
| 2000s | #4432 | 3 | 1 |
Geography
Where Caillen is most common
The bars show the latest published local birth counts for Caillen. 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.
Caillen ranks best in Scotland in the latest published regional snapshot for that area, where it placed #686 in 2015.
Across the UK
Caillen in Scotland and Northern Ireland
Scotland (NRS)
#686 in 2015
1 years of NRS records, 3 total registered
Related
Names similar to Caillen
- Charlie 104,761
- Callum 65,796
- Connor 53,072
- Cameron 40,394
- Charles 33,091
- Christopher 26,849
- Caleb 15,553
- Corey 12,622
- Carter 11,505
- Cody 11,075
- Conor 10,298
- Christian 9,695
FAQ
Caillen: questions and answers
How popular is the name Caillen in the UK right now?
In 2012, Caillen was ranked #4805 for boys in England and Wales, with 3 births registered.
When was Caillen most popular?
The peak year on record was 2008, with 3 babies registered as Caillen in England and Wales.
How many people are called Caillen in the UK?
A total of 6 babies have been registered as Caillen across the 2 years of ONS England & Wales records shown here, plus 3 more in Scotland.
Where is Caillen most common?
In the latest published local rankings, Caillen ranks best in Scotland, where it placed #686 in 2015. 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.