Caithlin
Pure
Ireland origin · Girl name
3% boys97% girls
#1814US 2023
386Births / yr
Stable
20All-time births
📅 Since 198800

What does Caithlin mean and where does it come from?

Caithlin is a variation of the name Caitlin, which originates from the Irish name Caitlín. The name has its roots in Old French from the name Catherine. Its meaning refers to purity and clarity. Caithlin is used in both Ireland and Scotland and has seen various spellings and adaptations over the yea

Cultural significance
Caithlin has been a cherished name across cultures, particularly in Ireland-speaking communities, where it reflects values of pure.
Peak popularity
Reached #10301 in 1988 — currently #1814 in the US.
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Related Reading
Ireland-origin baby names with timeless appeal
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What middle names flow best with Caithlin?

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

Caithlin Grace
Most popular combo · classic
Caithlin Rose
Floral · soft ending
Caithlin Mae
Sweet · timeless
Caithlin Claire
French influence · crisp
Caithlin Jane
Literary · strong
Caithlin Skye
Modern · airy feel
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Middle Names
The best middle names for Caithlin
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How popular is Caithlin right now?

Holding steady — currently #1814 in the US out of 135.5k tracked names

US Trend 20212023#1814 · Top 1.3%
2021
2022
2023
YearUS RankBirthsvs Prior Year
2023#1814386▲ up 5 · +5% births
2022#1819366▲ up 5 · +9% births
2021#1824336

The story of Caithlin

Caithlin is a relatively modern name, first appearing in US records in 1988. With 20 total births recorded, Caithlin remains relatively uncommon. The name has grown more popular over time, rising from #1824 in 2021 to #1814 in 2023.

Names that peaked alongside Caithlin in 1988:

💎Caithlin has only 20 total recorded births since 1988 — rarer than 99% of names in our database.

What are good nicknames for Caithlin?

Common
CaiCaieCayIthlin

Common questions about the name Caithlin

What does the name Caithlin mean?
Caithlin means "Pure" — a name rooted in Ireland 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 Caithlin?
Caithlin is currently a distinctive and less common name as a girl name in the US and is holding steady in popularity, a reliable classic that parents consistently choose.
What is the cultural origin of Caithlin?
Caithlin originates from Ireland tradition. Ireland names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
Is Caithlin a common or rare name?
Caithlin is a distinctive choice that balances familiarity with individuality. It strikes a balance between standing out and fitting in.
What are good nicknames for Caithlin?
Caithlin naturally lends itself to affectionate nicknames. Shortened versions based on the first syllable are most popular, and many parents also create unique pet names that feel personal to their family.