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Origin & history of Cailin1
Greek / Irish roots
Cailin is a modern American spelling variant of Caitlin, ultimately from Katherine — the Greek Katharos meaning pure — by way of the Irish Caitlín. The Cailin spelling, without the t, emerged in the 2000s alongside the broader American trend of crafting fresh feminine variants with simple, sleek spellings. Cailin peaked in 2003 within the broader Caitlin / Katelyn / Kaitlyn naming family.
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Root name
The root form of Cailin is
Caitlin (Caitlín) — meaning Pure.
3
Modern usage
Cailin remains a beloved choice. Timeless appeal across cultures and generations.
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How popular is Cailin?
2003
peak year
Its strongest stretch was the 2000s — when Cailin was at its most popular. At its height in 2003, Cailin reached #1,274 nationally — 164 babies received it that single year. Today, Cailin is a rare name in U.S. records with about 28 babies named Cailin each year. Cailin's usage has fallen in recent decades. In all, around 3,736 babies have been registered as Cailin since 1880.
Year-by-year registrations
1880–2024 · U.S. Social Security data
164
Babies named in peak year
(ranked #1,274)
(ranked #1,274)
28
Avg. per year
(last decade)
(last decade)
280
Total registrations
last 10 years
last 10 years
3,736
All-time total
(since 1880)
(since 1880)
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Numerology of Cailin3
Life path number
The Creator
Creativity, joy and self-expression.
✨Creative
😄Joyful
🗣️Communicator
🌈Optimistic
C3
A1
I9
L3
I9
N5
Sum: 30 → Life path 3
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♡
Personality of Cailin✨
Bright & creative
Imaginative, expressive, endlessly inventive.
😊
Magnetic warmth
Their laugh is contagious. People love being near them.
🌈
Eternal optimist
Even in dark moments they find the light.
🗣️
Storyteller
They can describe anything and make it fascinating.
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Names that sound like CailinIf you love Cailin, you might love these names with a similar sound, rhythm or feel.
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Names that combine with CailinSibling pairings that share the timeless, classic energy of Cailin.
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Middle names for CailinThe right middle name turns Cailin into a complete story. Explore options for first-and-middle pairings, then last-name flow.
Want a personalised middle name for Cailin? Try our dedicated generator with 1,000+ pairings.
♡ Generate middle name for Cailin →✦
Numerology life path calculatorEnter any full name and date of birth to discover the life path number — a core numerological indicator of personality, purpose and destiny.
First name
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Last name
Date of birth
7
Life path number
How we calculated this
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