Kylyn is a rare name used for both girls and boys that peaked in 2016 and remains in steady use.
Kylyn is predominantly a girl name. In 2025 it ranked #14,139 among girls (6) and #7,990 among boys (10) — overall #12,095 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 16 | 16 | #14,139 | #7,990 |
| 2024 | 20 | 20 | #11,690 | #7,081 |
| 2023 | 22 | 22 | #8,757 | #8,029 |
| 2022 | 19 | 19 | #9,371 | #9,486 |
| 2021 | 28 | 28 | #8,286 | #5,918 |
| 2020 | 20 | 20 | #9,262 | #8,450 |
| 2019 | 17 | 17 | #10,155 | #10,365 |
| 2018 | 26 | 26 | #7,267 | #7,927 |
| 2017 | 9 | 9 | #11,204 | — |
| 2016 | 29 | 29 | #6,303 | #8,541 |
| 2015 | 10 | 10 | #10,537 | — |
| 2014 | 16 | 16 | #9,883 | #13,208 |
| 2013 | 17 | 17 | #7,231 | — |
| 2012 | 23 | 23 | #7,308 | #11,636 |
| 2011 | 17 | 17 | #10,098 | #11,668 |
| 2010 | 12 | 12 | #9,546 | — |
| 2009 | 20 | 20 | #8,690 | #11,846 |
| 2008 | 19 | 19 | #8,766 | #13,723 |
| 2007 | 22 | 22 | #9,883 | #7,928 |
| 2006 | 18 | 18 | #7,010 | — |
| 2005 | 19 | 19 | #8,133 | #12,537 |
| 2004 | 19 | 19 | #9,007 | #9,515 |
| 2003 | 12 | 12 | #8,813 | — |
| 2002 | 15 | 15 | #7,267 | — |
| 2001 | 7 | 7 | #12,813 | — |
| 2000 | 21 | 21 | #7,007 | #9,802 |
| 1999 | 15 | 15 | #9,185 | #10,889 |
| 1998 | 11 | 11 | #8,306 | — |
| 1997 | 8 | — | #10,330 | — |
| 1996 | 10 | — | #8,520 | — |
| 1995 | 7 | — | #11,171 | — |
| 1994 | 6 | — | #12,647 | — |
| 1993 | 6 | — | #12,674 | — |
| 1992 | 6 | — | #12,589 | — |
| 1991 | 6 | — | #12,318 | — |