Kadyn is an uncommon variant of Kayden that peaked in 2009 and has since faded.
Kadyn is predominantly a boy name. In 2025 it ranked #3,018 among boys (41) and #16,012 among girls (5) — overall #5,949 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 46 | 46 | #16,012 | #3,018 |
| 2024 | 67 | 67 | #14,290 | #2,329 |
| 2023 | 68 | 68 | #6,786 | #2,595 |
| 2022 | 64 | 64 | #8,259 | #2,635 |
| 2021 | 70 | 70 | #7,098 | #2,477 |
| 2020 | 63 | 63 | #7,749 | #2,602 |
| 2019 | 111 | 111 | #5,884 | #1,743 |
| 2018 | 121 | 121 | #5,886 | #1,633 |
| 2017 | 120 | 120 | #5,242 | #1,669 |
| 2016 | 132 | 132 | #3,816 | #1,703 |
| 2015 | 156 | 156 | #3,732 | #1,465 |
| 2014 | 185 | 185 | #3,299 | #1,302 |
| 2013 | 208 | 208 | #2,920 | #1,198 |
| 2012 | 253 | 253 | #2,387 | #1,073 |
| 2011 | 243 | 243 | #2,495 | #1,093 |
| 2010 | 304 | 304 | #2,414 | #903 |
| 2009 | 372 | 372 | #1,882 | #833 |
| 2008 | 364 | 364 | #1,586 | #925 |
| 2007 | 337 | 337 | #1,930 | #880 |
| 2006 | 318 | 318 | #1,829 | #922 |
| 2005 | 312 | 312 | #1,956 | #861 |
| 2004 | 237 | 237 | #2,106 | #1,065 |
| 2003 | 179 | 179 | #2,720 | #1,213 |
| 2002 | 112 | 112 | #3,431 | #1,655 |
| 2001 | 85 | 85 | #4,616 | #1,880 |
| 2000 | 60 | 60 | #5,062 | #2,554 |
| 1999 | 41 | 41 | #6,657 | #3,148 |
| 1998 | 31 | 31 | #5,687 | #5,024 |
| 1997 | 27 | — | #9,384 | #3,811 |
| 1996 | 16 | — | #9,147 | #7,542 |
| 1995 | 5 | — | #14,446 | — |
| 1994 | 19 | — | #7,849 | #6,678 |
| 1993 | 6 | — | #12,528 | — |