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Katelyn

Girl name · Celtic · English · Gaelic · Irish

US rank
#1,076
Syllables
3
Peak
#52 in 2001

225 babies were named Katelyn in the US in 2025. It has dropped 400 places in five years.

Found on lists

Popular IrelandPopular UsaTop 100 Girls NamesTop 100 Girls Names 2011Top 100 Girls Names 2012Top 100 Girls Names 2013
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US births per million girls, 1970–2025

01,7003,400197020002025

Most popular states (2025)

UT rank #490MI rank #638KY rank #653TN rank #748AL rank #819

Similar names

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

Did you know?

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

Katelyn Nacon

Famous Katelyn

Katelyn Nacon

American actress

Choose Katelyn and your child shares a first name with Katelyn Nacon, an American actress. A ready-made answer when someone asks “Katelyn, like who?” Katelyn Nacon's Wikipedia article is available in 27 languages, a good sign of just how widely known they are.

Read about Katelyn Nacon on Wikipedia (opens in a new tab)

Photo: Katelyn Nacon, CC BY 2.0 (opens in a new tab), via Wikimedia Commons

  • How commonAbout 1 in every 7,143 baby girls born in the US in 2025 was named Katelyn, 225 babies in all. In a typical school of 500 kids, your Katelyn would very likely be the only one.
  • HistoryKatelyn first shows up in US birth records in 1970, the first year at least 5 babies got it. It has been in use for 55 years since.
  • Best yearIt was far more popular in 2001, when it ranked #52. Today it's #1,076, so it could be due a comeback.
  • Then vs nowKatelyn was 22× more common in 2000 than it is today. In 2000 it was given to about 1 in 330 baby girls; in 2025, about 1 in 7,143.
  • TrendKatelyn has slipped 400 places over the last five years and now sits at #1,076. Good news if you want a familiar name that fewer kids will share.
  • Where it's lovedKatelyn is most popular in Utah, where it ranks #490, followed by Michigan (#638) and Kentucky (#653). It's in the top 1,000 in 11 states.

About the name Katelyn

Katelyn is a girl name of Celtic, English and Gaelic origin. It has 7 letters and 3 syllables, starting with K and ending in “-lyn”. US birth records list Katelyn for girls from 1970 to 2025, in 56 of those 56 years. Its best year was 2001, when it ranked #52 among girl names. In 2025 it ranked #1,076, with 225 babies.

Origin:Celtic namesEnglish namesGaelic namesIrish names

Katelyn for girls, by decade
DecadeBabies per millionAbout 1 in
1970s1284,962 girls
1980s8381,194 girls
1990s2,940340 girls
2000s2,595385 girls
2010s9371,067 girls
2020s1985,042 girls

More Celtic girl names

Questions about the name Katelyn

What is the origin of the name Katelyn?

Katelyn has Celtic, English, Gaelic, Irish roots in our records. Other Celtic names include Evelyn, Isla, Riley.

Is Katelyn a boy or girl name?

Katelyn is a girl name.

How popular is the name Katelyn?

Katelyn ranked #1,076 for US girls in 2025, given to 225 babies. Its best year was 2001 (#52).