Kaelyn is an established girls' name that peaked in 2009 and has since faded.
Kaelyn is predominantly a girl name. In 2025 it ranked #1,601 for girl births in the United States (and #2,951 across all names), given to 131 babies. Kaelyn was first reported in SSA data in 1959 and peaked in 2009 (997 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 131 | 131 | #1,601 | — |
| 2024 | 131 | 131 | #1,643 | #13,227 |
| 2023 | 138 | 138 | #1,546 | — |
| 2022 | 141 | 141 | #1,527 | — |
| 2021 | 192 | 192 | #1,226 | — |
| 2020 | 221 | 221 | #1,109 | — |
| 2019 | 245 | 245 | #1,046 | — |
| 2018 | 280 | 280 | #948 | — |
| 2017 | 333 | 333 | #821 | — |
| 2016 | 391 | 391 | #726 | — |
| 2015 | 610 | 610 | #522 | #9,149 |
| 2014 | 533 | 533 | #575 | — |
| 2013 | 692 | 692 | #443 | — |
| 2012 | 762 | 762 | #417 | #9,286 |
| 2011 | 827 | 827 | #385 | #13,310 |
| 2010 | 951 | 951 | #340 | #11,452 |
| 2009 | 1,006 | 1,006 | #332 | #8,658 |
| 2008 | 949 | 949 | #351 | — |
| 2007 | 987 | 987 | #338 | — |
| 2006 | 886 | 886 | #370 | #10,112 |
| 2005 | 567 | 567 | #521 | #12,356 |
| 2004 | 502 | 502 | #569 | — |
| 2003 | 438 | 438 | #612 | — |
| 2002 | 389 | 389 | #650 | — |
| 2001 | 380 | 380 | #663 | — |
| 2000 | 380 | 380 | #651 | — |
| 1999 | 343 | 343 | #668 | — |
| 1998 | 292 | 292 | #744 | — |
| 1997 | 322 | — | #685 | #8,698 |
| 1996 | 308 | — | #711 | #5,769 |
| 1995 | 325 | — | #682 | #4,656 |
| 1994 | 175 | — | #1,046 | — |
| 1993 | 119 | — | #1,379 | — |
| 1992 | 106 | — | #1,490 | — |
| 1991 | 83 | — | #1,743 | — |
| 1990 | 95 | — | #1,589 | — |
| 1989 | 81 | — | #1,694 | — |
| 1988 | 73 | — | #1,743 | — |
| 1987 | 53 | — | #2,078 | — |
| 1986 | 57 | — | #1,939 | — |
| 1985 | 37 | — | #2,620 | — |
| 1984 | 41 | — | #2,357 | — |
| 1983 | 15 | — | #4,771 | — |
| 1982 | 13 | — | #5,347 | — |
| 1981 | 8 | — | #7,711 | — |
| 1979 | 5 | — | #10,897 | — |
| 1974 | 5 | — | #9,352 | — |
| 1968 | 5 | — | #7,507 | — |
| 1965 | 5 | — | #6,961 | — |
| 1964 | 8 | — | #5,200 | — |
| 1961 | 7 | — | #5,551 | — |
| 1959 | 5 | — | #6,702 | — |