Declining since 2020, #5,208 for boys today.
Popularity of Casyn since 2000
Babies named Casyn per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 2000s | 80 |
| 2010s | 271 |
| 2020s | 159 |
Meaning & origin
Casyn is a modern American name that first appeared in U.S. birth records around the year 2000. It reached its peak popularity in 2020, ranking 5,208th, with about 1 in every 94,893 boys receiving the name. Since 2020, its usage has been on a downward trajectory. The name has not been concentrated in any particular state, reflecting its widespread but low-frequency use. Casyn fits the trend of names ending in 'syn' or 'son,' which surged in the early 21st century. As a contemporary coinage, it lacks deep historical roots, but its similarity to names like Cason and Kason gives it a familiar sound. Parents drawn to creative spellings and modern-sounding names may find Casyn appealing, though it remains relatively rare.
Casyn is a modern coinage, first recorded in the United States in 2000. It appears to be a creative respelling or variant of names like Cason or Kason, which themselves may derive from the English surname Cason (meaning 'son of Cass'). Its rise in the early 2000s aligns with the trend of names ending in the sound '-son' and '-syn' for boys.
Nicknames & variants
Nicknames: Cas, Casy
Sibling names for Casyn
Names that share Casyn's style, for a brother or sister.

