Given name

Caitlyn

“one who is pure; virginal”

Caitlyn is a variant of Catherine. One English interpretation is “one who is pure; virginal.” Its derivation is not certain.

Meaning & origin

What it means

Caitlyn is a variant of Catherine. One English interpretation is “one who is pure; virginal.” Its derivation is not certain.

Explained through its name family

Where it comes from

Caitlyn comes from Irish.

Adapted from Wiktionary (CC BY-SA 4.0)

The story

Published U.S. birth records include this spelling as early as 1968. This is the earliest published observation available here, rather than a date for the name’s origin.

From dated birth records

Caitlyn through the years

Babies since 1880
52,637
34 boys · 52,603 girls
Most popular year
1998
2,943 babies
2025
71
#2,492 for girls
2021–25 vs 2016–20
−50%
Cooling
05001,0001,5002,000198020002025Highest share 199844
Caitlyn in U.S. Social Security birth records, 1968–2025, per million girls born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

Where it’s given

Most at home inFlorida, Texas, California
FewerMore, relative to births Not published
2025 births by state of birth. Tiles are equal-sized so small states stay visible. Highest rates: Florida (6), Texas (11), California (5).

By the numbers

In 2025, this name appeared in 71 U.S. birth records for girls, ranking No. 2,492 among girls’ names. Average annual use for girls was 50.4% lower in 2021–2025 than in 2016–2020. Its largest published annual count for girls was 2,937 in 1998. In 2025, Texas had the largest reported state-level birth count for girls with this name (11). Published U.S. population figures for this spelling include 48,237 as a first name in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Caitlyn’s family of names

In English usage, Caitlyn has a diminutive in Cait. Caitlyn has a related form in Catherine. In German usage, Caitlyn has a related form in Lynn.

Walk Caitlyn’s family in the name graph

CaitlynCatherineCaitlinLynnCaitCaitlyneCaittlynKatelynKatelynnCaitlynnKatelin

Inner ring: nicknames and forms · outer: across languages.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Nicknames & forms 6

Diminutives, pet forms, short forms and variants used alongside the name.

Across languages 4

Equivalents and cognates in other languages, plus older forms it grew from.

People named Caitlyn

Listed by how widely each person is written about, which says nothing about the name itself.

Similar names

If you love Caitlyn, these share its style, era, origin or sound, from outside its own family.

Irish · Modern

Caoilinn

Caoilinn is a feminine given name from Irish.

0Not recently recorded

>99% girls

Welsh · Modern

Cassidy

“curly-haired girl” · “a clever man”

60FamiliarEasing

7% boys · 93% girls

Irish · Modern

Kiana

“from an ancient family” · “of an ancient family”

54UncommonRising

>99% girls

Scottish · Modern

Catriona

“one who is pure; virginal”

0Not recently recordedCooling

>99% girls

Irish · Modern

Kiera

“little dark-haired one” · “having dark features; the little dark one”

48UncommonEasing

>99% girls

Irish · Modern

Casady

Casady is a surname from Irish.

0Not recently recorded

>99% girls

Irish · Modern

Eilish

Eilish is a feminine given name from Irish.

16Very rareCooling

>99% girls

Irish · Modern

Keira

“little dark-haired one” · “having dark features; the little dark one”

57FamiliarCooling

>99% girls

Sibling ideas

Names that share Caitlyn’s feel without repeating its first letter or rhyming with it.

A brother for Caitlyn

A sister for Caitlyn