Given name
Cailin
“a young woman; a lass”
Cailin is used as a given name. One interpretation is “a young woman; a lass.”
Meaning & origin
What it means
One interpretation is “a young woman; a lass.”
The story
Published U.S. birth records include this spelling as early as 1968. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Cailin through the years
- Babies since 1880
- 3,743
- 30 boys · 3,713 girls
- Most popular year
- 1998
- 169 babies
- 2025
- 7
- #12,153 for girls
- 2021–25 vs 2016–20
- −50%
- Cooling
By the numbers
In 2025, this name appeared in 7 U.S. birth records for girls, ranking No. 12,153 among girls’ names. Average annual use for girls was 50.3% lower in 2021–2025 than in 2016–2020. Its largest published annual count for girls was 164 in 2003. Published U.S. population figures for this spelling include 3,587 as a first name in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Cailin’s family of names
Cailin has a related form in Cailyn. Cailin has a related form in Caylin. Cailin has a related form in Caelan.
The ring: nicknames and forms.
Nicknames & forms 10
Diminutives, pet forms, short forms and variants used alongside the name.
- Caelanvariant
- Cailynvariant
- Caelynvariant
- Caylinvariant
- Caelinvariant
- Caolanvariant
- Caileanvariant
- Caileenvariant
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