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The first name Kaitlyn

A girl’s name from Irish.

2 syllables Female

Meaning and origin

Irish origin

A female given name from Irish, one of the modern spelling variants of Caitlin.

A form of Caitlin.

From Wiktionary (CC BY-SA 4.0).

Popularity

Babies registered in England and Wales, 1996–2025

In 2025, 23 girls were named Kaitlyn, making it the 1,362nd most popular girls’ name. It peaked in 2006, with 400 births (#139).

0200400 1996200020052010201520202025
5,160
babies named Kaitlyn, 1996–2025
#1,362
rank in 2025
2006
peak year

Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Kaitlyn with other names.

Popularity in the United States

Babies named Kaitlyn at birth, 1880–2025

In 2025, 340 girls born in the United States were named Kaitlyn, the 802nd most popular girls’ name that year. It was used most in 2000, when 8,759 were.

04,5009,000 188018851890189519001905191019151920192519301935194019451950195519601965197019751980198519901995200020052010201520202025
166,921
babies named Kaitlyn since 1880
#802
rank in 2025
2000
peak year

US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.

Nicknames and spellings

Nicknames for Kaitlyn

  • Kait

Famous people named Kaitlyn

10 on Wikidata, most written-about first

  • Kaitlyn Dever
    American actress (born 1996)
  • Kaitlyn Maher
    American actress, born 2004
  • Kaitlyn Ashley
    American pornographic actress, born 1971
  • Kaitlyn Lawes
    Canadian curler, born 1988
  • Kaitlyn Farrington
    American snowboarder and gold medalist, born 1989
  • Kaitlyn Weaver
    American-Canadian ice dancer, born 1989
  • Kaitlyn Black
    American actress, born 1983
  • Kaitlyn Santa Juana
    Actress, born 1996
  • Kaitlyn Dias
    American actress and voice artist, born 1999
  • Amouranth
    American live streamer and businesswoman (born 1993)

More Irish girls’ names

Questions

What is the origin of the name Kaitlyn?
Kaitlyn comes from Irish.
How popular is the name Kaitlyn?
In 2025, 23 girls born in England and Wales were named Kaitlyn, ranking 1,362nd. Its peak was 2006, with 400 births.
What are nicknames for Kaitlyn?
Common nicknames for Kaitlyn include Kait.
Is Kaitlyn a boy's or a girl's name?
Mostly a girl's name: 100% of the 166,921 US babies named Kaitlyn since 1880 were girls.
When was Kaitlyn most popular?
2000 in the United States, when 8,759 babies were named Kaitlyn, its highest rank at 30th.
What name is Kaitlyn a form of?
Kaitlyn is a form of Caitlin.