Kailin Boy & girl
How popular is Kailin?
#7,131 girl name in 2025
15 baby girls were named Kailin in the US in 2025, making it the 7131st most popular girl name.
Kailin popularity over time
Boys Girls
| Rank in 2025 | #7,131 for girls (▼ 492 from 2024) |
|---|---|
| Babies in 2025 | 15 girls |
| 10-year trend | Falling (-29% babies vs 2015) |
| Earlier ranks | #6,034 in 2015, #7,964 in 2020 |
| Peak year | 1997 (57 girls) |
| Highest rank | #2,325 in 1997 |
| First recorded | 1981 |
| Boys vs girls (last 10 years) | 27% boys, 73% girls |
| Chance a classmate shares it | 0.0% in a class of 25 kids born in 2025 |
Kailin counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Kaylin family of names ranked #373 for girls in 2025 (#335 the year before), with 849 babies in all.
| Spelling | Girls in 2025 | Share |
|---|---|---|
| Kaylin | 126 | 15% |
| Kailyn | 110 | 13% |
| Kaylynn | 134 | 16% |
| Kailynn | 78 | 9% |
| Kaylen | 61 | 7% |
| Kaylyn | 70 | 8% |
| Cailyn | 40 | 5% |
| Kaylene | 37 | 4% |
| Kalynn | 15 | 2% |
| Cailynn | 17 | 2% |
| Kahlan | 10 | 1% |
| Kalyn | 19 | 2% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Kailin is most popular
Babies named Kailin per 1,000 girls born in each state, 2021 to 2025. Darker means more common.
- California: 0.0 per 1,000 (7 girls)
Kailin by decade
Girl names about as popular as Kailin
Questions
- Is Kailin a boy or girl name?
- Kailin is used for both. Over the last 10 years, 27% of babies named Kailin were boys and 73% were girls.
- How popular is the name Kailin?
- 15 baby girls were named Kailin in the US in 2025, making it the 7131st most popular girl name.
- When was Kailin most popular?
- Kailin peaked in 1997, when 57 girls were given the name. Its highest rank was #2,325 in 1997.
- How many people are named Kailin?
- 1,410 babies have been named Kailin in the US since 1880. We estimate about 1,393 of them are alive in 2026, with a median age of 22.
- Where is Kailin most popular?
- From 2021 to 2025, Kailin was most common in California, at 0.0 of every 1,000 girls born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.