NameCensus.

UK name, mostly boys

Caelan

Meaning "slender, warrior" of Celtic origin.

For 2026, the newest official UK baby-name figures on this page are from 2024. That release is the current official benchmark rather than a forecast.

Caelan is mostly registered for boys in the UK records. People looking for Caelan popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #529, with 73 babies registered with the name. Its strongest year in the published records was 2015, with 110 births.

This profile covers 1,593 England and Wales registrations across 29 recorded years from 1996 to 2024. The figures come from ONS England and Wales, NRS Scotland and NISRA Northern Ireland, 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 66% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 2,268 living people in the UK are called Caelan. 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 2025 or 2026.

Key insights

  • Caelan ranked #529 for boys in England and Wales in 2024, with 73 registrations.
  • The name peaked in 2015, when 110 boys were registered as Caelan.
  • Caelan ranks best in Scotland in the latest published regional snapshot for that area, where it placed #165 in 2024.
  • About 2,268 living people in the UK are estimated to have Caelan as a first name, after adjusting past birth registrations with ONS life tables.
  • Across the England and Wales records shown here, 98.9% of Caelan registrations are for boys.

Latest rank (E&W)

#529

2024

Births in 2024

73

Latest year

Peak year

2015

110 births

Estimated living

2,268

2026

Gender

Boy and girl registrations for Caelan

In England and Wales birth records, Caelan has been registered for both boys and girls. Across the years shown here, 98.9% of registrations are for boys and 1.1% 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.

99% boys
Boys1,593 (98.9%)Girls17 (1.1%)

Caelan registered for boys

  • Ranked #529 in 2024
  • 73 boys registered in 2024
  • Peak: 2015 (110 births)

Caelan registered for girls

  • Ranked #4,524 in 2008
  • 4 girls registered in 2008
  • Peak: 2004 (5 births)

Meaning

What does Caelan mean?

The name Caelan is of Irish origin and is derived from the Gaelic word "caol" meaning "slender" or "thin". It is believed to have originated in the 5th or 6th century AD when Gaelic culture flourished in Ireland.

The earliest recorded example of the name Caelan dates back to the 7th century AD. It was the name of an Irish saint and scholar, Caelan of Inishcaltra, who lived on the island of Inishcaltra in Lough Derg, County Galway. He is said to have established a monastic school on the island and was known for his wisdom and learning.

Another notable figure in history with the name Caelan was Caelan mac Aillila, a 7th-century Irish king of the Uí Cheinnselaig dynasty. He ruled over the territory of South Leinster and is mentioned in the Annals of the Four Masters, a chronicle of medieval Irish history.

In the 9th century, Caelan mac Ailella was an Irish abbot and scribe who lived at the monastery of Iona in Scotland. He is known for his calligraphy and is believed to have transcribed several important manuscripts during his lifetime.

During the Middle Ages, Caelan was the name of a 12th-century Irish bishop and poet. Caelan of Loughcrew served as the Bishop of Ardagh and is remembered for his religious writings and poetry.

In more recent times, Caelan O'Connor was an Irish writer and journalist born in 1920. He authored several books and worked as a newspaper editor, contributing to the literary and cultural life of Ireland in the 20th century.

While the name Caelan has its roots in ancient Irish history and culture, it has also gained popularity in modern times, particularly in Ireland and among Irish communities around the world. However, its usage remains relatively uncommon compared to more widely known Irish names.

Sourced from namecensus.com.

Popularity

Caelan over time

The chart below compares boys and girls registered as Caelan in England and Wales, from 1996 to 2024. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Caelan, the clearest high point is 2015. The latest England and Wales figure is 73 births in 2024, compared with 110 at the peak.

Babies born per year

BoysGirls
0285583110199620102024

Decades

Caelan by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Caelan 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
2020s #528 368 5
2010s #483 832 10
2000s #796 355 10
1990s #1511 38 4

Geography

Where Caelan is most common

The bars show the latest published local birth counts for Caelan. 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.

Caelan ranks best in Scotland in the latest published regional snapshot for that area, where it placed #165 in 2024.

Scotland
27
Northern Ireland
7

Across the UK

Caelan in Scotland and Northern Ireland

Scotland (NRS)

#165 in 2024

24 years of NRS records, 521 total registered

Northern Ireland (NISRA)

#256 in 2024

24 years of NISRA records, 168 total registered

Related

Names similar to Caelan

FAQ

Caelan: questions and answers

How popular is the name Caelan in the UK right now?

In 2024, Caelan was ranked #529 for boys in England and Wales, with 73 births registered.

When was Caelan most popular?

The peak year on record was 2015, with 110 babies registered as Caelan in England and Wales.

What is the meaning and origin of Caelan?

Meaning "slender, warrior" of Celtic origin.

How many people are called Caelan in the UK?

A total of 1,593 babies have been registered as Caelan across the 29 years of ONS England & Wales records shown here, plus 521 more in Scotland and 168 in Northern Ireland.

Where is Caelan most common?

In the latest published local rankings, Caelan ranks best in Scotland, where it placed #165 in 2024. 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.