Kaidyn
Boy name · #2162 in 2025 · Very rare
How old is the name Kaidyn? In official American birth records, Kaidyn has been tracked continuously since 1999, giving it 26 years of documented American history.
In 2025, 67 baby boys were named Kaidyn, placing it at #2162 in the official national rankings. A decade ago it stood at #1185, so the name has been falling over the past ten years. Roughly one in every 26,866 boys born in 2025 was named Kaidyn.
Babies named Kaidyn per year. Source: Official national birth records.
The 26-year story
Kaidyn first appears in the Social Security records in 1999, when 6 boys received the name. Its peak came in 2014, when 190 boys were named Kaidyn — good for #1048 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Unlock the 5-year forecast and compare Kaidyn against up to 5 other names.
Uniqueness: will there be another Kaidyn in class?
On our rarity read — which blends how common Kaidyn is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Kaidyn will likely be the only one in the room, with the occasional spelling-out as the price.
Where Kaidyn is most common
State-level data for Kaidyn is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Kaidyn
Statistically, parents drawn to Kaidyn tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Kamdyn, Camdyn, Kaedyn, Zaedyn, and Landyn.
KamdynCamdynKaedynZaedynLandynRaidynJordynZaidyn
Rank history (last 25 years)
| Year | Babies named Kaidyn | Rank |
|---|---|---|
| 2025 | 67 | #2145 |
| 2024 | 83 | #1902 |
| 2023 | 123 | #1465 |
| 2022 | 108 | #1611 |
| 2021 | 100 | #1658 |
| 2020 | 113 | #1499 |
| 2019 | 156 | #1218 |
| 2018 | 139 | #1305 |
| 2017 | 100 | #1605 |
| 2016 | 156 | #1208 |
| 2015 | 156 | #1185 |
| 2014 | 190 | #1048 |
| 2013 | 162 | #1119 |
| 2012 | 185 | #1040 |
| 2011 | 161 | #1126 |
| 2010 | 139 | #1256 |
| 2009 | 131 | #1324 |
| 2008 | 124 | #1374 |
| 2007 | 95 | #1621 |
| 2006 | 69 | #1943 |
| 2005 | 52 | #2265 |
| 2004 | 54 | #2164 |
| 2003 | 33 | #2922 |
| 2002 | 24 | #3554 |
| 2001 | 9 | #6935 |
Frequently asked questions
How old is the name Kaidyn?
In official American birth records, the name Kaidyn first appeared in 1999 (over 26 years ago), when 6 newborn boys received the name. It has been tracked in modern national records for 26 years.
Is Kaidyn a popular boy name?
Kaidyn ranked #2162 among boys in 2025 with 67 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1185.
When was the name Kaidyn most popular?
Kaidyn peaked in 2014, when 190 American boys received the name (ranked #1048 that year). Since 2014 the name has declined from that high.
How rare is the name Kaidyn?
In 2025, roughly 1 in 26,866 newborn American boys was named Kaidyn. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.