Kailen Boy
How popular is Kailen?
#4,395 boy name in 2025
23 baby boys were named Kailen in the US in 2025, making it the 4395th most popular boy name.
Kailen popularity over time
Boys Girls
| Rank in 2025 | #4,395 for boys (▼ 1236 from 2024) |
|---|---|
| Babies in 2025 | 23 boys |
| 10-year trend | Steady (+5% babies vs 2015) |
| Earlier ranks | #4,405 in 2015, #3,135 in 2020 |
| Peak year | 2023 (43 boys) |
| Highest rank | #2,845 in 2014 |
| First recorded | 1983 |
| Boys vs girls (last 10 years) | 81% boys, 19% girls |
| Chance a classmate shares it | 0.0% in a class of 25 kids born in 2025 |
Kailen counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Callan family of names ranked #126 for boys in 2025 (#144 the year before), with 3,050 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Callan | 1,917 | 63% |
| Callen | 579 | 19% |
| Kallen | 150 | 5% |
| Kalen | 71 | 2% |
| Kallan | 82 | 3% |
| Calen | 35 | 1% |
| Calan | 34 | 1% |
| Kailen | 23 | 1% |
| Kailan | 28 | 1% |
| Kalan | 26 | 1% |
| Kaylon | 23 | 1% |
| Calin | 14 | 0% |
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 Kailen is most popular
Babies named Kailen per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- Florida: 0.0 per 1,000 (5 boys)
- California: 0.0 per 1,000 (7 boys)
Kailen by decade
Boy names about as popular as Kailen
Questions
- Is Kailen a boy or girl name?
- Kailen is mostly a boy name. Over the last 10 years, 81% of babies named Kailen were boys.
- How popular is the name Kailen?
- 23 baby boys were named Kailen in the US in 2025, making it the 4395th most popular boy name.
- When was Kailen most popular?
- Kailen peaked in 2023, when 43 boys were given the name. Its highest rank was #2,845 in 2014.
- How many people are named Kailen?
- 1,673 babies have been named Kailen in the US since 1880. We estimate about 1,653 of them are alive in 2026, with a median age of 18.
- Where is Kailen most popular?
- From 2021 to 2025, Kailen was most common in Florida, at 0.0 of every 1,000 boys 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.