Compare two names
Isac and Isaac side by side: Isac peaked in 2006 and Isaac in 2007; in 2025 they were given to 22 and 5,963 babies.
Isac and Isaac, year by year
Girls and boys together; Isac solid, Isaac dashed.
| Isac | Isaac | |
|---|---|---|
| Births 2025 | 22 | 5,963 |
| Rank 2025 | #4,599 among boys’ names | #47 among boys’ names |
| Recorded since 1880 | 3,203 | 332,292 |
| Peak year | 2006 | 2007 |
| Girls | 0% | 0.2% |
| Alive, estimated | 2,730 | 299,000 |
| Median age | 21 | 18 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.