Name comparison · boy names
Kairo vs. Kaizen
In 2025, Kairo leads at #226 among U.S. boys' names, with Kaizen at #364. The full 145-year picture below shows how the two names got here.
Popularity since 1880
Head to head
| Metric | Kairo | Kaizen |
|---|---|---|
| Trend | Rising | Rising |
| 2025 rank | #226 | #364 |
| Babies in 2025 | 1,577 | 895 |
| All-time peak | #226 in 2025 | #364 in 2025 |
| Uniqueness score | 29 / 100 | 36 / 100 |
| Strongest state | District of Columbia (#66) | Hawaii (#90) |