Compare two names
Kaoru and Kairo side by side: Kaoru peaked in 1921 and Kairo in 2025; in 2025 they were given to 0 and 1,611 babies.
Kaoru and Kairo, year by year
Girls and boys together; Kaoru solid, Kairo dashed.
| Kaoru | Kairo | |
|---|---|---|
| Births 2025 | 0 | 1,611 |
| Rank 2025 | not ranked | #226 among boys’ names |
| Recorded since 1880 | 251 | 11,519 |
| Peak year | 1921 | 2025 |
| Girls | 33% | 3% |
| Alive, estimated | under 100 | 11,400 |
| Median age | n/a | 4 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.