Name comparison · boy names
Isaac vs. Isaiah
In 2025, Isaac leads at #47 among U.S. boys' names, with Isaiah at #57. The full 145-year picture below shows how the two names got here.
Popularity since 1880
Head to head
| Metric | Isaac | Isaiah |
|---|---|---|
| Trend | Falling | Falling |
| 2025 rank | #47 | #57 |
| Babies in 2025 | 5,953 | 5,267 |
| All-time peak | #28 in 2013 | #39 in 2006 |
| Uniqueness score | 13 / 100 | 15 / 100 |
| Strongest state | Maryland (#17) | Hawaii (#26) |