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Katlyn

♀ Girl

Pronounced KAT-lin /ˈkæt.lɪn/High

Meaning: Kat-/-lyn spelling of Caitlin/Kaitlyn — the Irish form of Katherine, from Greek katharos, 'pure'Medium

In 30 seconds: Pure: Katlyn spells Caitlin/Kaitlyn — 'pure'. Crisp, modern, and warm.

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Origin MediumIrish, Greek

MeaningKat-/-lyn spelling of Caitlin/Kaitlyn — the Irish form of Katherine, from Greek katharos, 'pure'

U.S. rank (2024)#5504 ↗ Rising

2024 U.S. births23 girls (0.00% of U.S. girls)

Peak year1995

Total births (all-time)≈ 18,421

Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Katlyn is a Kat-/-lyn spelling of Caitlin/Kaitlyn — the Irish form of Katherine, from Greek katharos, 'pure, clean'. A crisp, modern name; the Kat-/-lyn styling personalizes it (nicknames Kat, Katie, Lyn).

It registers thinly beside Kaitlyn. Rare, pure at the root, and crisp.

Did you know? Caitlin is the Irish form of Katherine, 'pure' (Greek katharos) — Katlyn is a Kat-/-lyn spelling, crisp and modern (nickname Kat or Katie).

Overall data confidence 70%

Behind the Name — Caitlin — root etymology

Variations

CaitlinKaitlynKatelyn

Nicknames

KatKatie

Famous Bearers

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If you like Katlyn…

Caitlin— the Irish spelling

Kaitlyn— a fellow spelling

Katelyn— a companion spelling

Caitlyn— another spelling

Explore names like Katlyn

By themegreek irish modern-spelling

By meaningPurity

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Frequently Asked

What does the name Katlyn mean?

Katlyn spells Caitlin/Kaitlyn — the Irish Katherine, 'pure'.

How do you pronounce Katlyn?

It's said KAT-lin /ˈkæt.lɪn/ — two syllables, stress on the first.

Is Katlyn a boy or girl name?

Katlyn is a girl's name.

How popular is Katlyn?

Katlyn is a rare spelling in the U.S.; Kaitlyn is more common.