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
Save adds it to your list. Vote moves it up the top voted names.
US births per million girls, 1970–2025
Most popular states (2025)
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.
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
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1970s | 12 | 84,962 girls |
| 1980s | 838 | 1,194 girls |
| 1990s | 2,940 | 340 girls |
| 2000s | 2,595 | 385 girls |
| 2010s | 937 | 1,067 girls |
| 2020s | 198 | 5,042 girls |
Other spellings of Katelyn
More Celtic girl names
- Girl name: Evelyn · possibly desired
- Girl name: Isla · from Islay
- Unisex name: Riley · rye clearing
- Girl name: Maeve · she who intoxicates
- Unisex name: Kennedy · helmeted head
- Unisex name: Quinn · descendant of Conn
- Unisex name: Blair · plain, field
- Girl name: Olive · olive tree
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).