boy's name
Cassius
- Origin Latin
- Gender Boy
- Letters 7
- Popularity Top 1000 (US)
- Births on record 13,200
the United States
#584
2025 births
Cassius is a boy's name. In 2025 it was given to 504 babies in the United States, ranking #584. It is a well-established, commonly used name.
- Cassius is a name of Latin origin.
- Peaked in 2021, when 612 babies were given the name.
- It has been rising over the past decade.
- Today about 1 in 6,578 babies in the United States is given this name.
Cassius over time
Births per decade in the United States, 1880s 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 |
|---|---|
| 1880s | 82 |
| 1890s | 35 |
| 1900s | 5 |
| 1910s | 95 |
| 1920s | 112 |
| 1930s | 47 |
| 1940s | 59 |
| 1950s | 34 |
| 1960s | 309 |
| 1970s | 189 |
| 1980s | 211 |
| 1990s | 419 |
| 2000s | 1,225 |
| 2010s | 3,643 |
| 2020s (to 2025) | 3,301 |
How popular is Cassius?
In 2025, Cassius was given to 504 babies in the United States, ranking #584 that year. It is a well-established, commonly used name.
Where Cassius is used
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 Cassius
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Cassius also like
Names whose popularity has risen and fallen in step with Cassius over the last century — the same taste, a different name.
Cassius in other languages
The same name as it is spelled elsewhere — not shortenings, and not different names that merely sound alike. Each one has its own record here.
- Italian
- Cassio
Sibling names for Cassius
Names from the same era that won't rhyme or share an initial with Cassius — the two things that make a sibling set grate.
Common questions about Cassius
How popular is the name Cassius?
In 2025, Cassius was given to 504 babies in the United States, ranking #584 that year. It is a well-established, commonly used name.
Is Cassius a girl's or a boy's name?
Cassius is given almost entirely to boys in birth records.
When was Cassius most popular?
Cassius peaked in 2021, when 612 babies were given the name. It has been rising over the past decade.
Is Cassius a good name?
That is not something records can settle, but they can tell you what you would be choosing. Cassius currently ranks #320 in the United States. It has been rising over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.