Caithlin
Irish variation of Catherine
"pure"
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Updated Fri Mar 14 2025
Caithlin Origin and Meaning
The name Caithlin is a girl's name.
Caithlin is a feminine name representing an Anglicized form of the Irish name Caitlín (pronounced 'Kath-leen'), which itself is an Irish form of Katherine. The name ultimately derives from the Greek 'Aikaterine,' whose meaning remains debated but may relate to 'pure' or 'each of the two.' Despite its authentic Irish roots, this spelling variant is relatively uncommon compared to the more popular forms Caitlin, Kaitlyn, or Kathleen. Caithlin maintains the traditional Irish pronunciation while offering a distinctive spelling. The name carries associations with Irish heritage and culture, making it appealing to families with Celtic connections who seek a name that honors their ancestry while remaining accessible.