Name comparison · boy names
Kai vs. Kairo
In 2025, Kai leads at #93 among U.S. boys' names, with Kairo at #226. The full 145-year picture below shows how the two names got here.
Popularity since 1880
Head to head
| Metric | Kai | Kairo |
|---|---|---|
| Trend | Stable | Rising |
| 2025 rank | #93 | #226 |
| Babies in 2025 | 3,768 | 1,577 |
| All-time peak | #59 in 2022 | #226 in 2025 |
| Uniqueness score | 19 / 100 | 29 / 100 |
| Strongest state | Hawaii (#13) | District of Columbia (#66) |