The baby name Kaylyn appears in baby name data for the United States from 1973 to 2024. It was most popular in 2007 with 577 babies given the name.
In the later years of this period, Kaylyn has become less common than it once was.
| Year | Count |
|---|---|
| 1973 | 5 |
| 1983 | 5 |
| 1984 | 7 |
| 1985 | 26 |
| 1986 | 47 |
| 1987 | 134 |
| 1988 | 135 |
| 1989 | 204 |
| 1990 | 252 |
| 1991 | 334 |
| 1992 | 456 |
| 1993 | 401 |
| 1994 | 516 |
| 1995 | 458 |
| 1996 | 465 |
| 1997 | 510 |
| 1998 | 532 |
| 1999 | 413 |
| 2000 | 412 |
| 2001 | 438 |
| 2002 | 351 |
| 2003 | 396 |
| 2004 | 483 |
| 2005 | 518 |
| 2006 | 463 |
| 2007 | 577 |
| 2008 | 421 |
| 2009 | 409 |
| 2010 | 338 |
| 2011 | 359 |
| 2012 | 242 |
| 2013 | 200 |
| 2014 | 208 |
| 2015 | 179 |
| 2016 | 107 |
| 2017 | 103 |
| 2018 | 86 |
| 2019 | 63 |
| 2020 | 25 |
| 2021 | 63 |
| 2022 | 20 |
| 2023 | 10 |
| 2024 | 18 |