Compare two names
Kao and Kai side by side: Kao peaked in 1981 and Kai in 2022; in 2025 they were given to 8 and 4,002 babies.
Kao and Kai, year by year
Girls and boys together; Kao solid, Kai dashed.
| Kao | Kai | |
|---|---|---|
| Births 2025 | 8 | 4,002 |
| Rank 2025 | #9,300 among boys’ names | #93 among boys’ names |
| Recorded since 1880 | 719 | 78,710 |
| Peak year | 1981 | 2022 |
| Girls | 34% | 11% |
| Alive, estimated | 691 | 77,700 |
| Median age | 36 | 9 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.