Compare two names
Kaisen and Kayson side by side: Kaisen peaked in 2025 and Kayson in 2025; in 2025 they were given to 311 and 1,314 babies.
Kaisen and Kayson, year by year
Girls and boys together; Kaisen solid, Kayson dashed.
| Kaisen | Kayson | |
|---|---|---|
| Births 2025 | 311 | 1,314 |
| Rank 2025 | #800 among boys’ names | #264 among boys’ names |
| Recorded since 1880 | 2,637 | 15,487 |
| Peak year | 2025 | 2025 |
| Girls | 0.5% | 2% |
| Alive, estimated | 2,620 | 15,400 |
| Median age | 6 | 7 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.