Caitlin
/K-EY-T-L-IH-N/
Pure, from the Irish Caitlin, which traces back through Greek katharos meaning pure or clear. The Irish form of Catherine, carried widely into English use, it keeps at its heart the old ideal of a clean, unclouded nature, a clarity of spirit untouched and bright.
Get Caitlin's full report — patron saint, feast day & a portrait — freeQuick — what every Christian parent asks about Caitlin:
How well does Caitlin fit your family?
This page tells you what Caitlin means. The app tells you whether it's right for your baby — scored against your family & your heritage, and your baby's birth details.
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Six signals — scored for your family & heritage, not in the abstract:
Meaning & origin
Yes — Caitlin is a Christian girl name of English origin, meaning “Pure, from the Irish Caitlin, which traces back through Greek katharos meaning pure or clear. The Irish form of Catherine, carried widely into English use, it keeps at its heart the old ideal of a clean, unclouded nature, a clarity of spirit untouched and bright.”.
Caitlin is a girl's name of English origin, traditionally used in Christian families. The name means "Pure, from the Irish Caitlin, which traces back through Greek katharos meaning pure or clear. The Irish form of Catherine, carried widely into English use, it keeps at its heart the old ideal of a clean, unclouded nature, a clarity of spirit untouched and bright." and belongs to the Peace cluster — names meaning calm, serenity, and inner stillness.
Common among British, American, European families, Caitlin carries cultural weight that goes beyond its dictionary definition — it's a name with a story and a community.
The patron saint & feast day behind Caitlin
Many Christian names carry a patron saint and a feast day (name day) — a tradition of choosing a name for the saint a child is born near, or one the family holds dear. Caitlin lives in this tradition of meaning and heritage.
NameRoot connects the dots. See Caitlin's patron saint, its feast day, and whether it aligns with your baby's birth — alongside its full family score.
See Caitlin's saint & feast day →What does Caitlin's numerology say?
Numerology assigns each name a single-digit destiny number by summing its letter values. Different schools use different mappings — NameRoot computes both so you can see how Caitlin resonates in either tradition.
Caitlin's destiny number is 5 — but a number only matters in context. The app matches it to your family's own numbers for a real compatibility read. See Caitlin's full reading →
Does Caitlin go with your family's names?
Caitlin breaks into 6 sounds: /K-EY-T-L-IH-N/. The real test isn't how it sounds alone — it's how it sounds beside the names already in your family: yours, your partner's, and any brothers or sisters. NameRoot scores that harmony, so Caitlin sits naturally next to a Mum and Dad like Michael & Anna, or a big sister named Gianna — no awkward clashes, no two names that blur together. Hear Caitlin beside your family's names →
Nicknames
Common affectionate forms of Caitlin — useful for everyday family conversation, early childhood, or as standalone given names themselves.
Names similar to Caitlin
If Caitlin resonates with you, these names live in the same world — drawn from the same tradition, sharing the same meaning, or echoing a similar sound.
From the same tradition
Other Christian girl names, common in British families
Sharing the same meaning
Other Christian girl names from the Peace cluster
Names that sound similar
Christian girl names that open with the same syllables as Caitlin
Explore more names
Keep exploring names like Caitlin — by tradition, by meaning, or by first letter.
Common questions about Caitlin
What does the name Caitlin mean?
Caitlin means "Pure, from the Irish Caitlin, which traces back through Greek katharos meaning pure or clear. The Irish form of Catherine, carried widely into English use, it keeps at its heart the old ideal of a clean, unclouded nature, a clarity of spirit untouched and bright.." It is a girl name of English origin, traditionally used in Christian families.
Is Caitlin a boy or girl name?
Caitlin is most commonly used as a girl name.
What is the origin of the name Caitlin?
Caitlin is of English origin, used in Christian tradition, commonly among British, American, European families.
Is Caitlin a Christian name?
Yes. Caitlin is a girl name traditionally used in Christian families, of English origin.
What does Caitlin mean in English?
Caitlin originates from English, where it means "Pure, from the Irish Caitlin, which traces back through Greek katharos meaning pure or clear. The Irish form of Catherine, carried widely into English use, it keeps at its heart the old ideal of a clean, unclouded nature, a clarity of spirit untouched and bright.."
What are common nicknames for Caitlin?
Common short forms of Caitlin include Caiti, Cait.
What is the numerology of Caitlin?
Caitlin has a Pythagorean destiny number of 5 — freedom and adventurous change.
See how Caitlin scores for your family
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