The baby name Kaylen appears in baby name data for the United States from 1988 to 2023. It was most popular in 2008 with 438 babies given the name.
In the later years of this period, Kaylen has become less common than it once was.
| Year | Count |
|---|---|
| 1988 | 21 |
| 1989 | 18 |
| 1990 | 33 |
| 1991 | 24 |
| 1992 | 38 |
| 1993 | 145 |
| 1994 | 64 |
| 1995 | 40 |
| 1996 | 92 |
| 1997 | 103 |
| 1997 | 6 |
| 1998 | 206 |
| 1999 | 88 |
| 2000 | 145 |
| 2000 | 10 |
| 2001 | 168 |
| 2002 | 132 |
| 2003 | 194 |
| 2004 | 269 |
| 2004 | 10 |
| 2005 | 373 |
| 2006 | 326 |
| 2006 | 5 |
| 2007 | 364 |
| 2007 | 15 |
| 2008 | 438 |
| 2009 | 385 |
| 2009 | 17 |
| 2010 | 355 |
| 2010 | 14 |
| 2011 | 339 |
| 2011 | 5 |
| 2012 | 311 |
| 2012 | 44 |
| 2013 | 246 |
| 2013 | 42 |
| 2014 | 207 |
| 2014 | 45 |
| 2015 | 214 |
| 2015 | 10 |
| 2016 | 127 |
| 2017 | 153 |
| 2017 | 10 |
| 2018 | 89 |
| 2019 | 69 |
| 2019 | 14 |
| 2020 | 46 |
| 2021 | 24 |
| 2021 | 15 |
| 2022 | 52 |
| 2022 | 14 |
| 2023 | 34 |
| 2023 | 18 |