Kaydin is a rare variant of Kayden that peaked in 2009 and has since faded.
Kaydin is predominantly a boy name. In 2025 it ranked #4,472 for boy births in the United States (and #9,527 across all names), given to 23 babies. Kaydin was first reported in SSA data in 1999 and peaked in 2010 (101 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 23 | 23 | — | #4,472 |
| 2024 | 24 | 24 | — | #4,379 |
| 2023 | 28 | 28 | #16,370 | #4,536 |
| 2022 | 23 | 23 | — | #4,507 |
| 2021 | 32 | 32 | — | #3,544 |
| 2020 | 25 | 25 | #14,273 | #4,946 |
| 2019 | 37 | 37 | — | #3,167 |
| 2018 | 51 | 51 | #13,131 | #2,771 |
| 2017 | 56 | 56 | #9,057 | #2,776 |
| 2016 | 68 | 68 | #7,067 | #2,496 |
| 2015 | 82 | 82 | #7,123 | #2,141 |
| 2014 | 95 | 95 | #5,382 | #2,031 |
| 2013 | 123 | 123 | #4,121 | #1,701 |
| 2012 | 123 | 123 | #4,434 | #1,692 |
| 2011 | 111 | 111 | #5,458 | #1,725 |
| 2010 | 136 | 136 | #4,248 | #1,570 |
| 2009 | 152 | 152 | #3,068 | #1,647 |
| 2008 | 142 | 142 | #2,788 | #1,887 |
| 2007 | 136 | 136 | #3,013 | #1,868 |
| 2006 | 97 | 97 | #4,738 | #1,999 |
| 2005 | 78 | 78 | #5,032 | #2,285 |
| 2004 | 83 | 83 | #3,715 | #2,516 |
| 2003 | 59 | 59 | #4,873 | #2,966 |
| 2002 | 28 | 28 | #8,547 | #4,812 |
| 2001 | 24 | 24 | #10,549 | #5,022 |
| 2000 | 6 | 6 | — | #9,723 |
| 1999 | 10 | 10 | #15,583 | #10,789 |