Keilyn is a rare variant of Keilani that peaked in 2011 and has grown less common since.
Keilyn is predominantly a girl name. In 2025 it ranked #4,606 for girl births in the United States (and #7,978 across all names), given to 30 babies. Keilyn was first reported in SSA data in 1988 and peaked in 2009 (63 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 30 | 30 | #4,606 | — |
| 2024 | 52 | 52 | #3,431 | #11,686 |
| 2023 | 49 | 49 | #3,300 | — |
| 2022 | 52 | 52 | #3,444 | #11,622 |
| 2021 | 61 | 61 | #3,187 | #7,882 |
| 2020 | 67 | 67 | #2,915 | #7,266 |
| 2019 | 54 | 54 | #3,480 | #8,548 |
| 2018 | 47 | 47 | #3,817 | #9,245 |
| 2017 | 45 | 45 | #3,955 | #10,257 |
| 2016 | 57 | 62 | #3,304 | #9,296 |
| 2015 | 54 | 54 | #3,455 | #9,177 |
| 2014 | 60 | 60 | #3,253 | #7,864 |
| 2013 | 45 | 45 | #4,045 | #9,246 |
| 2012 | 70 | 70 | #2,989 | #6,500 |
| 2011 | 82 | 87 | #2,816 | #4,754 |
| 2010 | 77 | 77 | #2,882 | #5,369 |
| 2009 | 72 | 72 | #2,813 | #8,686 |
| 2008 | 52 | 52 | #3,745 | #8,675 |
| 2007 | 72 | 72 | #2,975 | #6,875 |
| 2006 | 56 | 56 | #3,698 | #5,956 |
| 2005 | 37 | 37 | #4,426 | #10,817 |
| 2004 | 32 | 32 | #5,003 | #10,695 |
| 2003 | 20 | 20 | #5,927 | — |
| 2002 | 36 | 36 | #4,223 | #10,071 |
| 2001 | 31 | 31 | #5,091 | #7,960 |
| 2000 | 20 | 20 | #8,874 | #7,126 |
| 1999 | 22 | 22 | #6,059 | #10,807 |
| 1998 | 21 | 21 | #6,215 | #10,491 |
| 1997 | 19 | — | #5,316 | — |
| 1996 | 15 | — | #9,175 | #8,490 |
| 1995 | 10 | — | #8,409 | — |
| 1994 | 12 | — | #7,349 | — |
| 1993 | 8 | — | #10,050 | — |
| 1991 | 5 | — | #14,221 | — |
| 1988 | 6 | — | #11,027 | — |