Compare two names
Kaizen and Kayzen side by side: Kaizen peaked in 2025 and Kayzen in 2025; in 2025 they were given to 900 and 43 babies.
Kaizen and Kayzen, year by year
Girls and boys together; Kaizen solid, Kayzen dashed.
| Kaizen | Kayzen | |
|---|---|---|
| Births 2025 | 900 | 43 |
| Rank 2025 | #364 among boys’ names | #2,908 among boys’ names |
| Recorded since 1880 | 3,070 | 226 |
| Peak year | 2025 | 2025 |
| Girls | 1% | 0% |
| Alive, estimated | 3,050 | 224 |
| Median age | 3 | 4 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.