Meaning not yet researched.
Caidyn: US boys given the name each year, 1880 to 2025, from Social Security card applications. 23 in 2025. Its best rank was #2,081 in 2011.
US births per year · SSA card applications
Peaked at #2,081 in 2011; #4,420 in 2025. Every baby recorded as Caidyn in 2025 was a boy.
Baby name · US data 1880–2025
#4,420 for US boys in 2025. Its best year was 2011, at #2,081.
Hover, tap or use the arrow keys for any year. Years with fewer than five babies of a sex are not published by SSA and show as zero.
Caidyn: US boys and girls given the name each year from 1880 to 2025. 23 boys in 2025. Peak: #2,081 in 2011 · most boys in one year: 64 (2011).
In 2025, 23 US boys were named Caidyn, making it the 4,420th most common boys’ name of the year, down 204 places from #4,216 in 2024. That is 2 fewer than the 25 boys named Caidyn in 2024. Its best rank for boys was #2,081, reached in 2011. That year also had the most boys given the name: 64. For comparison, it was #3,032 in 2015 and unranked in 1950.
Fewer than five US girls were named Caidyn in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #4,010, reached in 2004. The most girls given the name in a single year was 39, in 2008. For comparison, it was #8,551 in 2015 and unranked in 1950.
Social Security card records list Caidyn in 27 years of the 146 from 1880 to 2025, starting in 1999 with 5 babies. In all, 1,270 US babies have been given the name, 35% of them girls and 65% boys. Its busiest decade was the 2010s, with 619 babies named Caidyn.
Over the 10 years from 2016 to 2025, 289 US boys were named Caidyn; the busiest of those years was 2018, with 43. In 2025 that was about 1 in 74,264 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Caden (72,993 babies since 1880), Kaiden (54,156 babies since 1880), Cayden (43,123 babies since 1880) and Caiden (23,862 babies since 1880).
Meaning not yet researched.
We publish a meaning only with a cited source and a confidence label, and never generate one. Meanings are being researched for the most common names first.
Numbers are all-time US births. Links come from Wikidata’s “said to be the same as” (P460, CC0) and our spelling rule: at most two letters different, with the same sound pattern.
No nicknames listed for Caidyn in the open dataset we use.
Source: carltonnorthern/nicknames (Apache-2.0).
Births and national rank for each year SSA lists the name, newest first.
| Year | Girls | Girls rank | Boys | Boys rank |
|---|---|---|---|---|
| 2025 | — | — | 23 | #4,420 |
| 2024 | 5 | #15,719 | 25 | #4,216 |
| 2023 | 8 | #11,370 | 27 | #4,019 |
| 2022 | 5 | #15,741 | 26 | #4,109 |
| 2021 | 6 | #13,797 | 16 | #5,599 |
| 2020 | 9 | #10,422 | 26 | #3,939 |
| 2019 | 8 | #11,564 | 37 | #3,148 |
| 2018 | 11 | #9,281 | 43 | #2,805 |
| 2017 | 9 | #10,855 | 34 | #3,319 |
| 2016 | 12 | #8,993 | 32 | #3,452 |
| 2015 | 13 | #8,551 | 38 | #3,032 |
| 2014 | 10 | #10,284 | 44 | #2,715 |
| 2013 | 25 | #5,348 | 45 | #2,628 |
| 2012 | 22 | #5,938 | 63 | #2,137 |
| 2011 | 31 | #4,592 | 64 | #2,081 |
| 2010 | 27 | #5,131 | 51 | #2,433 |
| 2009 | 34 | #4,385 | 55 | #2,352 |
| 2008 | 39 | #4,023 | 42 | #2,834 |
| 2007 | 33 | #4,490 | 31 | #3,455 |
| 2006 | 21 | #6,174 | 41 | #2,788 |
| 2005 | 31 | #4,393 | 20 | #4,343 |
| 2004 | 35 | #4,010 | 23 | #3,880 |
| 2003 | 16 | #6,940 | 14 | #5,306 |
| 2002 | 12 | #8,385 | — | — |
| 2001 | 5 | #15,768 | 5 | #10,798 |
| 2000 | 8 | #10,898 | 5 | #10,587 |
| 1999 | 5 | #14,778 | — | — |
About the data: counts are Social Security card applications for US births, for names given to at least five babies of a sex in a year (SSA, names.zip, public domain). Ranks follow SSA’s own order: most births first, ties alphabetical. Files retrieved 2026-10-05 (checksum on our sources page).