Caitlun

pure — from Caitlín
Irish origin · Girl name
3% boys97% girls
#1942US 2023
10Births / yr
Stable
Top 1.4%Percentile

What does Caitlun mean and where does it come from?

Caitlun is a diminutive form of Caitlín, which is the Irish form of Catherine, derived from the Greek 'katharos' meaning 'pure'.

Cultural significance
Caitlun is used in Irish culture, often as a modern variant of traditional names like Caitlín.
Peak popularity
Reached #1942 in 2015 — currently #1942 in the US.
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Related Reading
Irish-origin baby names with timeless appeal
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How else can you spell Caitlun?

Same sound, different look — useful if you want something slightly more distinctive

What middle names flow best with Caitlun?

Caitlun works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful

Caitlun Grace
One syllable · timeless choice
Caitlun Leah
One syllable · timeless choice
Caitlun Zoey
One syllable · vintage charm
Caitlun Maeve
One syllable · timeless choice
Caitlun Jade
One syllable · vintage charm
Caitlun Quinn
One syllable · timeless choice
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Middle Names
The best middle names for Caitlun
Browse ideas →

How popular is Caitlun right now?

Holding steady — currently #1942 in the US out of 135.5k tracked names

US Trend 20192023#1942 · Top 1.4%
2019
2020
2021
2022
2023
YearUS RankBirthsvs Prior Year
2023#194210stable
2022#194210stable
2021#194210stable
2020#194210stable
2019#194210
💎Caitlun is exceptionally rare — it does not appear in US Social Security records, meaning fewer than 5 babies per year have received this name.

What are good nicknames for Caitlun?

Common
CaiCaieCayItlun

Common questions about the name Caitlun

What does the name Caitlun mean?
Caitlun means "pure — from Caitlín" — a name rooted in Irish tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.
How popular is the name Caitlun?
Caitlun is currently a distinctive and less common name as a baby name in the US and is holding steady in popularity, a reliable classic that parents consistently choose.
What is the cultural origin of Caitlun?
Caitlun originates from Irish tradition. Irish names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
Is Caitlun a common or rare name?
Caitlun is a distinctive choice that balances familiarity with individuality. It strikes a balance between standing out and fitting in.
Is Caitlun more of a girl or boy name?
Caitlun is primarily used as a girl name, giving it a clear, timeless character while remaining accessible to modern families.