Cailyn

Girl Name #3,286 Most Popular Hidden Gem 2 Syllables

An Irish classic made fresh with a modern twist

Irish American Scottish

Gentle Classic Modern Playful

Meaning & Origin

"pure"

Origin: Greek via Irish

Language: English

"slender, fair"

Origin: Irish

Language: English

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.

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

Famous People Named Cailyn

Caitlin Moran

Writer

1975

British feminist author and journalist, known for How to Be a Woman

Caitlin Jenner

Athlete

1949

Former Olympic decathlete and LGBTQ+ advocate

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

Cailee #4722

Common Nicknames

Cay Cai Linny

Pairs Well With

Cailyn Rose Cailyn Marie Cailyn Grace Cailyn Elizabeth Cailyn Ann Cailyn Jean

Sibling Names

Declan Saoirse Ronan Fiona Aidan Maeve

Similar Names

Kathlyn Kelly Bailey Kayla Kaylynn Kaylyn Raelyn Kaylin

Playground Safety

Kid-Friendly

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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.

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.