Compare two names
Cassius and Caius side by side: Cassius peaked in 2021 and Caius in 2025; in 2025 they were given to 504 and 254 babies.
Cassius and Caius, year by year
Girls and boys together; Cassius solid, Caius dashed.
| Cassius | Caius | |
|---|---|---|
| Births 2025 | 504 | 254 |
| Rank 2025 | #583 among boys’ names | #927 among boys’ names |
| Recorded since 1880 | 9,766 | 2,329 |
| Peak year | 2021 | 2025 |
| Girls | 0.3% | 0% |
| Alive, estimated | 9,180 | 2,310 |
| Median age | 9 | 7 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.