Katlyn
Girl name · American · English · Greek · Irish
Meaningpure · Irish form of Caitlin
- US rank
- #8,362
- Syllables
- 2
- Peak
- #223 in 1995
12 babies were named Katlyn in the US in 2025. It has climbed 591 places in five years.
Save adds it to your list. Vote moves it up the top voted names.
US births per million girls, 1979–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Katlyn you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 133,333 baby girls born in the US in 2025 was named Katlyn, 12 babies in all. In a typical school of 500 kids, your Katlyn would very likely be the only one.
- HistoryKatlyn first shows up in US birth records in 1979, the first year at least 5 babies got it. It has been in use for 46 years since.
- Best yearIt was far more popular in 1995, when it ranked #223. Today it's #8,362, so it could be due a comeback.
- Then vs nowKatlyn was 71× more common in 2000 than it is today. In 2000 it was given to about 1 in 1,888 baby girls; in 2025, about 1 in 133,333.
- TrendKatlyn has climbed 591 places in the US rankings over the last five years and now sits at #8,362. Fast risers like this often keep climbing, so expect to hear it more.
- MeaningKatlyn is an Irish form of Caitlin, which means “pure”. Our records link it to American, English and Greek roots.
About the name Katlyn
Katlyn is a girl name of American, English and Greek origin meaning “pure”. It has 6 letters and 2 syllables, starting with K and ending in “-lyn”. US birth records list Katlyn for girls from 1979 to 2025, in 47 of those 47 years. Its best year was 1995, when it ranked #223 among girl names. In 2025 it ranked #8,362, with 12 babies.
Origin:American namesEnglish namesGreek namesIrish names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1970s | 4.4 | 227,273 girls |
| 1980s | 108 | 9,247 girls |
| 1990s | 598 | 1,672 girls |
| 2000s | 277 | 3,608 girls |
| 2010s | 35 | 28,225 girls |
| 2020s | 9.3 | 107,914 girls |
Other spellings of Katlyn
More American girl names
- Girl name: Lainey · possibly light
- Girl name: Daisy · day's eye
- Girl name: Josie · he will add
- Unisex name: Kinsley · king's meadow
- Girl name: Sienna · from Siena
- Unisex name: Brooklyn · from Brooklyn, New York
- Girl name: Summer · summer
- Unisex name: Stevie · crown
Questions about the name Katlyn
What does the name Katlyn mean?
Katlyn means “pure” in Irish, as a form of Caitlin.
What is the origin of the name Katlyn?
Katlyn has American, English, Greek, Irish roots in our records. Other American names include Lainey, Daisy, Josie.
Is Katlyn a boy or girl name?
Katlyn is a girl name.
How popular is the name Katlyn?
Katlyn ranked #8,362 for US girls in 2025, given to 12 babies. Its best year was 1995 (#223).