Compare two names
Isao and Isiah side by side: Isao peaked in 1925 and Isiah in 2001; in 2025 they were given to 0 and 120 babies.
Isao and Isiah, year by year
Girls and boys together; Isao solid, Isiah dashed.
| Isao | Isiah | |
|---|---|---|
| Births 2025 | 0 | 120 |
| Rank 2025 | not ranked | #1,480 among boys’ names |
| Recorded since 1880 | 246 | 24,721 |
| Peak year | 1925 | 2001 |
| Girls | 0% | 0.0% |
| Alive, estimated | under 100 | 19,300 |
| Median age | n/a | 26 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.