Declining since 2013, #2,145 for boys today.
Popularity of Kaidyn since 1998
Babies named Kaidyn per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 1990s | 6 | 6 |
| 2000s | 529 | 597 |
| 2010s | 681 | 1,544 |
| 2020s | 104 | 594 |
Meaning & origin
Kaidyn first appeared on the U.S. Social Security list in 1999, a modern coinage riding the -ayden naming trend. It reached its highest rank in 2014, when it was the 2145th most popular name overall. By 2025, its usage had fallen, reflecting the broader decline of similar invented names. The name is found most frequently in Florida and California, states where creative spellings and trendy sounds often take hold. With 1 in 25,494 babies receiving the name in the latest year, Kaidyn remains a recognizable but uncommon choice. Like many modern names, Kaidyn is spelled in multiple ways, and its variant Caden remains more common. Its meaning is uncertain, but its appeal lies in its contemporary sound and unisex flexibility.
Kaidyn is a modern American coinage, part of a cluster of invented names (Caden, Jayden, Brayden) that gained popularity in the late 20th and early 21st centuries. It likely blends the fashionable -ayden suffix with a creative spelling. The name first appeared in 1999 and rose quickly, peaking in 2014.
Where Kaidyn is most popular
Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.
Nicknames & variants
Nicknames: Kai, Kay
Sibling names for Kaidyn
Names that share Kaidyn's style, for a brother or sister.
