NameCensus.

UK girl's name

Caitlin

A feminine name of Irish origin meaning "pure" or "blessed".

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.

Caitlin is a girl's name in the UK records. People looking for Caitlin popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #610, with 64 babies registered with the name. Its strongest year in the published records was 2003, with 2,277 births.

This profile covers 28,931 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 3% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 38,551 living people in the UK are called Caitlin. 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

  • Caitlin ranked #610 for girls in England and Wales in 2024, with 64 registrations.
  • The name peaked in 2003, when 2,277 girls were registered as Caitlin.
  • Caitlin ranks best in Wales in the latest published regional snapshot for that area, where it placed #5 in 2005.
  • About 38,551 living people in the UK are estimated to have Caitlin as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#610

2024

Births in 2024

64

Latest year

Peak year

2003

2,277 births

Estimated living

38,551

2026

Meaning

What does Caitlin mean?

The name Caitlin has its origins in the Gaelic language and culture of Ireland. It is derived from the ancient Irish name Cáit, which was a pet form of the name Caitríona. Caitríona itself is believed to have come from the older Irish Gaelic word "cáith," meaning "pure."

The name Caitlin gained widespread popularity in Ireland during the Middle Ages, particularly among the Celtic Christian community. It was a common name given to girls born into devoutly religious families, as it was seen as a symbol of purity and devotion to the Christian faith.

One of the earliest recorded instances of the name Caitlin can be found in the Annals of Ulster, a historical chronicle of medieval Ireland. In this text, a woman named Caitlin is mentioned as having been involved in a land dispute in the year 1029 AD.

Throughout history, several notable figures have borne the name Caitlin. One of the most famous was Caitlin Bochardi (c. 1510-1580), an Irish noblewoman and patron of the arts who was renowned for her patronage of poets and musicians during the Renaissance period.

Another famous Caitlin was Caitlin O'Conor (1738-1825), an Irish revolutionary who played a significant role in the Irish Rebellion of 1798 against British rule. She is remembered for her bravery and unwavering commitment to the cause of Irish independence.

In the realm of literature, Caitlin Sainthill (1862-1942) was a notable Irish novelist and poet who wrote extensively about the lives and struggles of the Irish people during the late 19th and early 20th centuries.

In more recent times, Caitlin Thomas (1913-1994) was a Welsh author and wife of the renowned poet Dylan Thomas. She was an acclaimed writer in her own right, known for her memoirs and works depicting the harsh realities of life in rural Wales.

Caitlin Doughty (born 1984) is a contemporary American mortician, author, and activist known for her efforts in promoting death acceptance and challenging societal taboos surrounding death and dying.

While the name Caitlin has its roots in Irish Gaelic, it has since gained popularity across various cultures and regions, with numerous variations in spelling and pronunciation. However, its enduring connection to the ideals of purity and devotion remains a central part of its historical significance.

Sourced from namecensus.com.

Popularity

Caitlin over time

The chart below shows babies named Caitlin registered in England and Wales in the years where the name appears in the published records, 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 Caitlin, the clearest high point is 2003. The latest England and Wales figure is 64 births in 2024, compared with 2,277 at the peak.

Babies born per year

Caitlin
05691K2K2K199620102024

Decades

Caitlin by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Caitlin 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 #643 311 5
2010s #193 4,103 10
2000s #31 18,359 10
1990s #41 6,158 4

Geography

Where Caitlin is most common

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

Caitlin ranks best in Wales in the latest published regional snapshot for that area, where it placed #5 in 2005.

Wales
180
Northern Ireland
17
Scotland
10

Across the UK

Caitlin in Scotland and Northern Ireland

Scotland (NRS)

#333 in 2024

45 years of NRS records, 6,975 total registered

Northern Ireland (NISRA)

#119 in 2024

28 years of NISRA records, 2,894 total registered

Related

Names similar to Caitlin

FAQ

Caitlin: questions and answers

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

In 2024, Caitlin was ranked #610 for girls in England and Wales, with 64 births registered.

When was Caitlin most popular?

The peak year on record was 2003, with 2,277 babies registered as Caitlin in England and Wales.

What is the meaning and origin of Caitlin?

A feminine name of Irish origin meaning "pure" or "blessed".

How many people are called Caitlin in the UK?

A total of 28,931 babies have been registered as Caitlin across the 29 years of ONS England & Wales records shown here, plus 6,975 more in Scotland and 2,894 in Northern Ireland.

Where is Caitlin most common?

In the latest published local rankings, Caitlin ranks best in Wales, where it placed #5 in 2005. 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.