Is Kailyn a boy or girl name?
Kailyn is mostly a girl name in the US. In 2024, 133 girls and 16 boys were named Kailyn, so 89.3% were girls. Across 1880–2024, 99.1% of the 14,230 US babies named Kailyn were girls.
- Boy rank, 2024
- #5,758
- Girl rank, 2024
- #1,578
- Babies named Kailyn since 1981
- 14,230
- Most popular year
- 2011
- 799 babies
Boys and girls named Kailyn, by decade
| Decade | Boys | Girls | Share girls |
|---|---|---|---|
| 1980s | 0 | 349 | 100% |
| 1990s | 7 | 2,422 | 99.7% |
| 2000s | 25 | 5,584 | 99.6% |
| 2010s | 53 | 4,925 | 98.9% |
| 2020s | 47 | 818 | 94.6% |
Every year
| Year | Boys | Boy rank | Girls | Girl rank |
|---|---|---|---|---|
| 2024 | 16 | #5,758 | 133 | #1,578 |
| 2023 | 10 | #7,980 | 154 | #1,446 |
| 2022 | 14 | #6,310 | 158 | #1,425 |
| 2021 | 7 | #10,238 | 180 | #1,281 |
| 2020 | 0 | – | 193 | #1,196 |
| 2019 | 8 | #9,298 | 247 | #1,038 |
| 2018 | 0 | – | 264 | #992 |
| 2017 | 0 | – | 298 | #899 |
| 2016 | 0 | – | 355 | #803 |
| 2015 | 5 | #13,038 | 436 | #659 |
| 2014 | 7 | #10,172 | 604 | #513 |
| 2013 | 6 | #11,442 | 609 | #492 |
| 2012 | 6 | #11,522 | 623 | #493 |
| 2011 | 6 | #11,552 | 793 | #397 |
| 2010 | 15 | #5,885 | 696 | #443 |
| 2009 | 0 | – | 706 | #446 |
| 2008 | 7 | #10,458 | 706 | #446 |
| 2007 | 5 | #13,379 | 663 | #491 |
| 2006 | 6 | #11,335 | 626 | #493 |
| 2005 | 0 | – | 583 | #511 |
| 2004 | 0 | – | 533 | #532 |
| 2003 | 0 | – | 499 | #554 |
| 2002 | 0 | – | 438 | #589 |
| 2001 | 0 | – | 399 | #627 |
| 2000 | 7 | #8,665 | 431 | #593 |
| 1999 | 0 | – | 389 | #619 |
| 1998 | 7 | #8,017 | 355 | #651 |
| 1997 | 0 | – | 306 | #704 |
| 1996 | 0 | – | 295 | #715 |
| 1995 | 0 | – | 246 | #807 |
| 1994 | 0 | – | 246 | #822 |
| 1993 | 0 | – | 212 | #908 |
| 1992 | 0 | – | 160 | #1,113 |
| 1991 | 0 | – | 120 | #1,363 |
| 1990 | 0 | – | 93 | #1,610 |
| 1989 | 0 | – | 103 | #1,436 |
| 1988 | 0 | – | 70 | #1,793 |
| 1987 | 0 | – | 57 | #1,971 |
| 1986 | 0 | – | 40 | #2,485 |
| 1985 | 0 | – | 29 | #3,118 |
| 1984 | 0 | – | 17 | #4,399 |
| 1983 | 0 | – | 16 | #4,562 |
| 1982 | 0 | – | 11 | #6,106 |
| 1981 | 0 | – | 6 | #9,633 |
Highest rank
As a boy name, Kailyn reached #5,758 in 2024. As a girl name, it reached #397 in 2011. Ranks count every name SSA published for that year and sex, so they go well past the top 1,000.
Names from the same era
These names were also most popular in the 2010s, with a similar number of babies. They can work as sibling or middle names that feel like they belong together.
Names spelled like Kailyn
Source: US Social Security Administration baby name data, 1880–2024. Counts are Social Security card applications for US births; SSA leaves out names given to fewer than 5 babies in a year. Updated 2026-10-05. How these numbers are made.