Cassius
How to say it: KASH-us · /ˈkæʃəs/
Ancient Roman family name (gens Cassia); possibly from Latin 'cassus' meaning 'empty, vain' or of uncertain Etruscan origin.
Cassius was the 519th most popular boys’ name in the United States in 2025, given to 504 babies (Social Security Administration). The 2020s are its busiest decade so far, its births are up about 26% in ten years, and it is projected to slip to #533 by 2030.
Updated · SSA 2025 data, published May 2026 · How we compute these figures
Key facts
| Rank among boys’ names, 2025 | #519 |
|---|---|
| Babies born in 2025 | 504 |
| Share of births | 1 in 5,847 |
| Peak decade | 2020s |
| Change over 10 years | +26% |
| Projected rank for 2030 (estimate) | #533 |
Sources: Social Security Administration (SSA). How we compute these figures.
Its life, decade by decade
After years of building, Cassius reached its strongest stretch in the 2020s and holds at that peak. A slight slip is expected from here.
What goes with it
Crisp at the start and breathy at the end, it carries a strong literary air. Atticus feels close in style.
Nicknames
- Cass
- Cash
- Cas
Other spellings
Honouring a Cassius in the family
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Cassius is about under 1 in 200.
Around the world
This spelling is used in English, French.
England and Wales: #319.
Famous people named Cassius
- Cassius Marcellus Coolidge (1844–1934)American artist
- Cassius M. Clay (1810–1903)American planter, politician and ambassador to Russia
- Cassius Jackson Keyser (1862–1947)American mathematician and journalist of pronounced philosophical inclinations
From Wikidata and Wikipedia
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