Baby Names of Ireland

Caitlin: Meaning, Pronunciation and Origin

Caitlin is an Irish girl's name meaning “pure, clear.” Here’s how to say it, where it comes from, and names that go well with it.

Updated September 2026

How to say it
KOIT-leenTwo syllables, stress on the first
Meaning
Pure, clear
Gender
Girl
English forms
Catherine, Kathleen
Popularity in Ireland
No. 247 for girls (2025)

How do you pronounce Caitlin?

Caitlin is pronounced KOIT-leen. It has two syllables, with the stress on the first. It can also be said KATH-leen. Other spellings: Cathleen.

What does Caitlin mean?

Devotion to St. Catherine came to Ireland with Christianity. Revered for her courage and purity, Catherine in the Irish form, Cathleen, became such a popular name that W. B. Yeats chose it for the heroine of his 1899 play “The Countess Cathleen” which was inspired by an Irish folktale. In a time of famine the Devil offers food to the starving poor in exchange for their souls. But Cathleen convinces Satan to take her soul instead. When she dies the Devil comes to collect her soul but God intervenes and carries Cathleen to heaven, saying that “such a sacrificial act cannot justly lead to evil consequences.”

In 2025, 17 baby girls in Ireland were named Caitlin, which made it No. 247 that year. Another 8 were registered as Caitlín. That's down from No. 97 ten years earlier. It was most popular in 2003, when 192 baby girls were named Caitlin, No. 31 that year. It first appears in the records in 1967, with 3 baby girls.

0100200197019801990200020102020192 in 200325 in 2025
Baby girls named Caitlin each year, all spellings (Caitlin, Caitlín). Source: Central Statistics Office, Irish Babies’ Names 2025 (data: table VSA60, girls' names, CC BY 4.0).
See the numbers by year
YearBabiesRank
202525No. 247 (Caitlin)
202420No. 342 (Caitlin)
202314No. 339 (Caitlin)
202220No. 357 (Caitlin)
202128No. 221 (Caitlin)
202024No. 246 (Caitlin)
201943No. 152 (Caitlin)
201847No. 179 (Caitlin)
201736No. 154 (Caitlin)
201650No. 121 (Caitlin)
201566No. 97 (Caitlin)
201473No. 91 (Caitlin)
201389No. 73 (Caitlin)
2012105No. 64 (Caitlin)
2011116No. 65 (Caitlin)
201093No. 75 (Caitlin)
2009134No. 53 (Caitlin)
2008168No. 46 (Caitlin)
2007164No. 44 (Caitlin)
2006143No. 46 (Caitlin)
2005191No. 34 (Caitlin)
2004189No. 34 (Caitlin)
2003192No. 31 (Caitlin)
2002151No. 38 (Caitlin)
2001160No. 34 (Caitlin)
2000130No. 40 (Caitlin)
1999112No. 41 (Caitlin)
199874No. 54 (Caitlin)
199754No. 98 (Caitlin)
199632No. 155 (Caitlin)
199534No. 141 (Caitlin)
199425No. 171 (Caitlin)
199319No. 204 (Caitlin)
19926No. 391 (Caitlin)
19917No. 365 (Caitlin)
19907No. 357 (Caitlin)
19895No. 408 (Caitlin)
19873No. 488 (Caitlin)
19867No. 356 (Caitlin)
19853No. 519 (Caitlin)
19843No. 516 (Caitlin)
19833No. 529 (Caitlin)
19804No. 483 (Caitlin)
19793No. 523 (Caitlin)
19773No. 518 (Caitlin)
19763No. 497 (Caitlin)
19753No. 503 (Caitlin)
19673No. 393 (Caitlin)

Caitlin in Ogham

Ogham is the oldest way of writing Irish. It was carved along the edges of standing stones, mostly between the 4th and 6th centuries, and read from the bottom up. In later tradition each letter was named after a tree or plant. Here’s Caitlin, letter by letter.

᚛ᚉᚐᚔᚈᚂᚔᚅ᚜
  1. CColl, hazel
  2. AAilm, pine
  3. IIodhadh, yew
  4. TTinne, holly
  5. LLuis, rowan
  6. IIodhadh, yew
  7. NNion, ash

Write any name in Ogham with our Ogham translator

Names that go with Caitlin

Questions about Caitlin

How do you pronounce Caitlin?
Caitlin is pronounced KOIT-leen. Two syllables, stress on the first.
What does Caitlin mean?
Caitlin means “pure, clear.”
Is Caitlin a girl's name or a boy's name?
Caitlin is a girl's name.
What is Caitlin in English?
The English forms of Caitlin are Catherine and Kathleen.
How popular is Caitlin in Ireland?
In 2025, Caitlin was No. 247 for girls in Ireland, with 17 babies, according to the Central Statistics Office. It was most popular in 2003, at No. 31.