"pure"
Origin: Greek via Irish
Language: English
Cailyn
Does Cailyn flow with your last name?
An Irish classic made fresh with a modern twist
Irish
American
Scottish
Gentle
Classic
Modern
Playful
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Meaning & Origin
"slender, fair"
Origin: Irish
Language: English
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The Story of Cailyn
Cailyn is a modern spelling variant of Caitlin, the Irish form of Catherine, which derives from the Greek 'Aikaterine.' The name's ultimate meaning is debated: it may connect to the Greek word for 'pure' (katharos) or to the name of the goddess Hecate. The 'Cai-' spelling gives this ancient name a fresh, contemporary look while keeping its Irish roots.
Caitlin and its many variants (Kaylin, Cailyn, Kaelyn) peaked in the 1990s-2000s in the United States and Ireland. The variant spellings emerged as parents sought personalized takes on the classic sound.
In Ireland, Caitlin/Cailyn is deeply tied to national identity — 'Caitlín Ní Houlihán' is a poetic personification of Ireland itself, used in Irish nationalist poetry and W.B. Yeats's famous play.
Historical Record
Cailyn first appeared in US Social Security records in 1979.
Over 5,509 babies have been named Cailyn in the United States since SSA records began.
Today, Cailyn is past its peak , currently ranked #3,286 for girl names in the US .
Fun Facts
- Caitlín Ní Houlihán is a famous poetic personification of Ireland used in nationalist literature
- Catherine the Great of Russia bore this name's root, making it associated with powerful female rulers
Cailyn in Other Languages
Irish
Caitlín
French
Catherine
Spanish
Catalina
Scottish Gaelic
Catrìona
Popularity Over Time
#3,286
Current Rank
Stable
Trend
Peaked 2009
Based on SSA data 1880–present
Year-by-year popularity data will be available soon.
Famous People Named Cailyn
C
Caitlin Moran
Writer
1975
British feminist author and journalist, known for How to Be a Woman
C
Caitlin Jenner
Athlete
1949
Former Olympic decathlete and LGBTQ+ advocate
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Compare Cailyn with:
Quick Facts
- Gender
- Girl
- Syllables
- 2
- Popularity Rank
- #3,286
- Total SSA Count
- 48
- Cultural Origins
- Irish American Scottish
- Pronunciation
- Easy
- Formality
- Moderate
- Cross-Cultural Ease
- Moderate
Alternative Spellings
Common Nicknames
Cay
Cai
Linny
Middle Name Ideas
Suggested pairings based on syllable flow and style
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Timeless choice, smooth 2-2 syllable flow
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Timeless choice, smooth 2-1 syllable flow
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Timeless choice, smooth 2-2 syllable flow
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Timeless choice, smooth 2-2 syllable flow
-
Timeless choice, smooth 2-2 syllable flow
-
Timeless choice, American heritage match, extended 2-3 combo
-
Timeless choice, American heritage match, extended 2-3 combo
-
Timeless choice, American heritage match, extended 2-3 combo
-
Timeless choice, American heritage match, extended 2-3 combo
-
Timeless choice, smooth 2-2 syllable flow
Middle Names
Middle Names for Cailyn
6 name pairings with syllable flow tips
Sibling Names
Sibling Match
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Hebrew origin
"bitter grace"
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American English origin
"meadow variant of Taylor"
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Frequently Asked Questions About Cailyn
What does the name Cailyn mean?
"pure" (from Greek via Irish). "slender, fair" (from Irish). Cailyn is a modern spelling variant of Caitlin, the Irish form of Catherine, which derives from the Greek 'Aikaterine.' The name's ultimate meaning is debated: it may connect to the Greek word for 'pure' (katharos) or to the name of the goddess Hecate. The 'Cai-' spelling gives this ancient name a fresh, contemporary look while keeping its Irish roots.
What is the origin of the name Cailyn?
Cailyn has Greek via Irish, Irish, American, and Scottish origins. In Greek via Irish, it means "pure". In Irish, it means "slender, fair".
Is Cailyn a boy or girl name?
Cailyn is primarily used as a girl name.
How popular is the name Cailyn?
Cailyn is currently ranked #3286 in popularity for girl names in the United States.
What are common nicknames for Cailyn?
Common nicknames for Cailyn include Cay, Cai, and Linny.
What are good middle names for Cailyn?
Popular middle name pairings include Cailyn Rose, Cailyn Marie, Cailyn Grace, Cailyn Elizabeth, Cailyn Ann, and Cailyn Jean.
What are good sibling names for Cailyn?
Names that pair well with Cailyn as siblings include Declan, Saoirse, Ronan, Fiona, Aidan, and Maeve.
How many syllables does Cailyn have?
Cailyn has 2 syllables, making it easy to say and remember.
Is Cailyn a common or rare name?
Cailyn is an uncommon name, ranked #3286 in the US. Its rarity gives it a distinctive, memorable quality.
What girl names are similar to Cailyn?
Are there other spellings for Cailyn?
Related spellings include Cailee.
About the Name Cailyn
Cailyn is a girl name with Irish, American, and Scottish origins . The name means "pure" in Greek via Irish .
Cailyn is currently ranked #3,286 in popularity for girl names in the United States.
The name Cailyn has 2 syllables, making it easy to pronounce and remember.
Common nicknames for Cailyn include Cay, Cai, and Linny. These shorter forms provide casual alternatives while keeping the elegance of the full name.
Alternative spellings of Cailyn include Cailee . Each spelling variation gives the name a slightly different character while preserving its sound and meaning.
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Sources
- U.S. Social Security Administration — National Baby Names Data (popularity rankings and historical trends)
- Behind the Name (etymology and meaning research)
- NamingEverything editorial research and analysis