Cailin
Meaninggirl · Irish
- US rank
- #11,932
- Syllables
- 2
- Peak
- #1,161 in 1998
7 babies were named Cailin in the US in 2025. It has dropped 8,386 places in five years.
Save adds it to your list. Vote moves it up the top voted names.
US births per million girls, 1968–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Cailin you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 227,273 baby girls born in the US in 2025 was named Cailin, 7 babies in all. In a typical school of 500 kids, your Cailin would very likely be the only one.
- HistoryCailin 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 #1,161. Today it's #11,932, so it could be due a comeback.
- Then vs nowCailin was 19× more common in 2000 than it is today. In 2000 it was given to about 1 in 12,107 baby girls; in 2025, about 1 in 227,273.
- TrendCailin has slipped 8,386 places over the last five years and now sits at #11,932. Good news if you want a familiar name that fewer kids will share.
- MeaningIn Irish, Cailin means “girl”. Our records link it to American and Irish roots.
About the name Cailin
Cailin is a girl name of American and Irish origin meaning “girl”. It has 6 letters and 2 syllables, starting with C and ending in “-lin”. US birth records list Cailin for girls from 1968 to 2025, in 53 of those 58 years. Its best year was 1998, when it ranked #1,161 among girl names. In 2025 it ranked #11,932, with 7 babies.
Origin:American namesIrish names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1960s | 2.8 | 363,636 girls |
| 1970s | 3.5 | 284,900 girls |
| 1980s | 24 | 40,917 girls |
| 1990s | 60 | 16,534 girls |
| 2000s | 77 | 12,947 girls |
| 2010s | 34 | 29,138 girls |
| 2020s | 12 | 81,081 girls |
Other spellings of Cailin
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 Cailin
What does the name Cailin mean?
Cailin means “girl” in Irish.
What is the origin of the name Cailin?
Cailin has American, Irish roots in our records. Other American names include Lainey, Daisy, Josie.
Is Cailin a boy or girl name?
Cailin is a girl name.
How popular is the name Cailin?
Cailin ranked #11,932 for US girls in 2025, given to 7 babies. Its best year was 1998 (#1,161).