boy's name
Casyn
- Gender Boy
- Letters 5
- Popularity Rare
- Births on record 536
Casyn is a boy's name. In 2025 it was given to 18 babies in the United States. It is a rare choice.
- Peaked in 2014, when 46 babies were given the name.
- Its usage has held steady over the past decade.
- Today about 1 in 184,196 babies in the United States is given this name.
- First appears in US birth records in 2000.
Casyn over time
Births per decade in the United States, 2000s to 2020s. The striped bar is the 2020s, still in progress — it covers 2020 to 2025, not a full ten years.
Show the numbers
| Decade | Births |
|---|---|
| 2000s | 80 |
| 2010s | 297 |
| 2020s (to 2025) | 159 |
How popular is Casyn?
In 2025, Casyn was given to 18 babies in the United States. It is a rare choice.
US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.
Names that peaked alongside Casyn
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Casyn also like
Names whose popularity has risen and fallen in step with Casyn over the last century — the same taste, a different name.
Sibling names for Casyn
Names from the same era that won't rhyme or share an initial with Casyn — the two things that make a sibling set grate.
Common questions about Casyn
How popular is the name Casyn?
In 2025, Casyn was given to 18 babies in the United States. It is a rare choice.
Is Casyn a girl's or a boy's name?
Casyn is given almost entirely to boys in birth records.
When was Casyn most popular?
Casyn peaked in 2014, when 46 babies were given the name. Its usage has held steady over the past decade.
Is Casyn a good name?
That is not something records can settle, but they can tell you what you would be choosing. Casyn currently ranks #5,365 in the United States. Its usage has held steady over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.