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Caitlyn

Girl name · American · Celtic · Gaelic · Greek · Irish

Meaningpure · English form of Katherine

US rank
#2,485
Syllables
2
Peak
#115 in 1998

71 babies were named Caitlyn in the US in 2025. It has dropped 853 places in five years.

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US births per million girls, 1968–2025

08501,700196820002025

Similar names

Popularity: U.S. Social Security Administration (babies with 5+ births per year).

Did you know?

A few things about Caitlyn you might not know, from US birth records and Wikipedia. Handy for convincing a partner, or a grandparent.

Caitlyn Jenner

Famous Caitlyn

Caitlyn Jenner

American media personality and retired decathlete

Choose Caitlyn and your child shares a first name with Caitlyn Jenner, an American media personality and retired decathlete. A ready-made answer when someone asks “Caitlyn, like who?” Caitlyn Jenner's Wikipedia article is available in 61 languages, a good sign of just how widely known they are.

Read about Caitlyn Jenner on Wikipedia (opens in a new tab)

Photo: US Mission to the UN, Public domain (opens in a new tab), via Wikimedia Commons

  • How commonAbout 1 in every 22,624 baby girls born in the US in 2025 was named Caitlyn, 71 babies in all. In a typical school of 500 kids, your Caitlyn would very likely be the only one.
  • HistoryCaitlyn first shows up in US birth records in 1968, the first year at least 5 babies got it. It has been in use for 57 years since.
  • Best yearIt was far more popular in 1998, when it ranked #115. Today it's #2,485, so it could be due a comeback.
  • Then vs nowCaitlyn was 35× more common in 2000 than it is today. In 2000 it was given to about 1 in 641 baby girls; in 2025, about 1 in 22,624.
  • TrendCaitlyn has slipped 853 places over the last five years and now sits at #2,485. Good news if you want a familiar name that fewer kids will share.
  • MeaningCaitlyn is an English form of Katherine, which means “pure”. Our records link it to American, Celtic and Gaelic roots.

About the name Caitlyn

Caitlyn is a girl name of American, Celtic and Gaelic origin meaning “pure”. It has 7 letters and 2 syllables, starting with C and ending in “-lyn”. US birth records list Caitlyn for girls from 1968 to 2025, in 54 of those 58 years. Its best year was 1998, when it ranked #115 among girl names. In 2025 it ranked #2,485, with 71 babies.

Origin:American namesCeltic namesGaelic namesGreek namesIrish names

Caitlyn for girls, by decade
DecadeBabies per millionAbout 1 in
1960s1.5666,667 girls
1970s4.6217,391 girls
1980s2533,946 girls
1990s1,228815 girls
2000s1,075930 girls
2010s3213,117 girls
2020s6515,484 girls

Questions about the name Caitlyn

What does the name Caitlyn mean?

Caitlyn means “pure” in English, as a form of Katherine.

What is the origin of the name Caitlyn?

Caitlyn has American, Celtic, Gaelic, Greek, Irish roots in our records. Other American names include Lainey, Daisy, Josie.

Is Caitlyn a boy or girl name?

Caitlyn is a girl name.

How popular is the name Caitlyn?

Caitlyn ranked #2,485 for US girls in 2025, given to 71 babies. Its best year was 1998 (#115).