Kailen
- Gender
- Boy
- Say it
- KAY-len
- Origin
- Modern
- UK rank, 2025
- #5,065 for boys
- US rank, 2025
- #4,395 for boys
Kailen is a boys' name of Modern origin. In 2025 it ranked 5,065th for boys in the UK (3 babies) and 4,395th for boys in the US (23 babies).
What does Kailen mean?
Modern: variant of Kaylen
A modern variant of names like Kaylen and Kalen; it may also be an anglicised spelling of Irish Caolán.
Is Kailen a girl's or a boy's name?
Kailen is a boys' name. In 2025, it was given to 3 boys in the UK and 23 boys in the US. Too few girls were given it to be listed.
How popular is Kailen in the UK?
- Rank in 2025
- 5,065th among boys
- Babies in 2025
- 3 about 1 in 100,000 boys
- Five-year trend
- Falling fast down 63% in five years
- Same name in a class
- under 1% chance among 15 boys
In 2025, 3 boys in the UK were named Kailen, making it the 5,065th most popular name for boys. Five years earlier, in 2020, it was 1,829th. Its busiest year was 2017, with 31 boys.
2025 had fewer boys named Kailen than any year since 2001.
Half of all the boys named Kailen in the UK since 1996 were born between 2009 and 2017, the years shaded on the chart below.
In 2025, 302 boys in the UK were given Kailen or a name that sounds the same. With every name's spellings counted this way, that ranks #196, up from #5,065 for this spelling alone.
Among boys in 2025, it was 4,974th in England and Wales.
Kailen in the UK, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 3 | #5,065 |
| 2024 | 10 | #2,328 |
| 2023 | 4 | #4,335 |
| 2022 | 11 | #2,143 |
| 2021 | 17 | #1,547 |
| 2020 | 13 | #1,829 |
| 2019 | 23 | #1,230 |
| 2018 | 10 | #2,234 |
| 2017 | 31 | #1,045 |
| 2016 | 24 | #1,234 |
| 2015 | 11 | #2,127 |
| 2014 | 25 | #1,162 |
| 2013 | 23 | #1,199 |
| 2012 | 25 | #1,166 |
| 2011 | 22 | #1,252 |
| 2010 | 17 | #1,508 |
| 2009 | 8 | #2,445 |
| 2008 | 16 | #1,490 |
| 2007 | 8 | #2,337 |
| 2006 | 8 | #2,193 |
| 2005 | 12 | #1,599 |
| 2004 | 14 | #1,348 |
| 2003 | 5 | #2,574 |
| 2002 | 7 | #1,900 |
| 2001 | 0 | – |
| 2000 | 7 | #1,775 |
| 1999 | 0 | – |
| 1998 | 1 | #3,884 |
| 1997 | 4 | #2,438 |
| 1996 | 5 | #2,094 |
How popular is Kailen in the US?
- Rank in 2025
- 4,395th among boys
- Babies in 2025
- 23 about 1 in 74,000 boys
- Five-year trend
- Steady up 11% in five years
- Same name in a class
- under 1% chance among 15 boys
In 2025, 23 boys in the US were named Kailen, making it the 4,395th most popular name for boys. Five years earlier, in 2020, it was 3,135th. Its busiest year was 2023, with 43 boys. It first appears in the records in 1983.
2025 had fewer boys named Kailen than any year since 2015.
Half of all the boys named Kailen in the US since 1880 were born between 2003 and 2019, the years shaded on the chart below.
In 2025, 436 boys in the US were given Kailen or a name that sounds the same. With every name's spellings counted this way, that ranks #611, up from #4,395 for this spelling alone.
In 1994, 71% of the babies named Kailen in the US were girls. By 2024 it was 12%, with more boys than girls since 2011.
Kailen in the US, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 23 | #4,395 |
| 2024 | 38 | #3,159 |
| 2023 | 43 | #2,894 |
| 2022 | 27 | #3,992 |
| 2021 | 40 | #3,020 |
| 2020 | 36 | #3,135 |
| 2019 | 31 | #3,568 |
| 2018 | 27 | #3,887 |
| 2017 | 25 | #4,101 |
| 2016 | 36 | #3,160 |
| 2015 | 22 | #4,405 |
| 2014 | 41 | #2,845 |
| 2013 | 28 | #3,659 |
| 2012 | 30 | #3,527 |
| 2011 | 25 | #3,992 |
| 2010 | 30 | #3,530 |
| 2009 | 33 | #3,330 |
| 2008 | 36 | #3,163 |
| 2007 | 28 | #3,685 |
| 2006 | 33 | #3,225 |
| 2005 | 33 | #3,087 |
| 2004 | 24 | #3,731 |
| 2003 | 27 | #3,361 |
| 2002 | 30 | #3,018 |
| 2001 | 24 | #3,507 |
| 2000 | 22 | #3,634 |
| 1999 | 28 | #2,935 |
| 1998 | 25 | #3,089 |
| 1997 | 18 | #3,733 |
| 1996 | 14 | #4,390 |
| 1995 | 14 | #4,274 |
| 1994 | 10 | #5,446 |
| 1993 | 0 | – |
| 1992 | 10 | #5,228 |
| 1991 | 9 | #5,513 |
| 1990 | 6 | #7,171 |
| 1989 | 0 | – |
| 1988 | 0 | – |
| 1987 | 9 | #4,567 |
| 1986 | 0 | – |
| 1985 | 5 | #6,517 |
| 1984 | 0 | – |
| 1983 | 5 | #6,234 |
Names like Kailen
Names given in the same years and the same naming tradition, with a similar sound.
Kayden, Finn, Aiden, Kian, Brody, Ronan, Keegan, Brayden, Conan, Declan, Kody, Rowan
Other spellings of Kailen
Caelan, Caolan, Kaylen, Kaylan, Kaelan, Caelen, Kaelen, Kalen, Calen, Caylen, Keylan, Kaylon, Kalon, Keylen, Kailon
Names related to Kailen
Kailan, Kallen, Kalin, Cailen, Kaelin, Kailani, Kailany, Kailyn, Kayleen, Kailynn
More Modern names
Jayden, Ailany, Myla, Nevaeh, Jax, Indie, Miley, Raelynn, Kaiden, Kehlani, Alayna, Caden, Zayden, Wrenley, Mya, Oaklynn
Sources
Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland), Baby names (Northern Ireland Statistics and Research Agency) and Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Kailen: name meaning, origin and popularity”, https://www.nameling.co.uk/names/kailen, updated 20 October 2026.