Compare two names
Kass and Kaius side by side: Kass peaked in 2009 and Kaius in 2025; in 2025 they were given to 0 and 216 babies.
Kass and Kaius, year by year
Girls and boys together; Kass solid, Kaius dashed.
| Kass | Kaius | |
|---|---|---|
| Births 2025 | 0 | 216 |
| Rank 2025 | not ranked | #1,029 among boys’ names |
| Recorded since 1880 | 70 | 2,011 |
| Peak year | 2009 | 2025 |
| Girls | 0% | 0% |
| Alive, estimated | under 100 | 2,000 |
| Median age | n/a | 6 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.