Compare two names
Kais and Caius side by side: Kais peaked in 2017 and Caius in 2025; in 2025 they were given to 32 and 254 babies.
Kais and Caius, year by year
Girls and boys together; Kais solid, Caius dashed.
| Kais | Caius | |
|---|---|---|
| Births 2025 | 32 | 254 |
| Rank 2025 | #3,553 among boys’ names | #927 among boys’ names |
| Recorded since 1880 | 423 | 2,329 |
| Peak year | 2017 | 2025 |
| Girls | 0% | 0% |
| Alive, estimated | 419 | 2,310 |
| Median age | 9 | 7 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.