Compare two names
Jack and Jac side by side: Jack peaked in 1927 and Jac in 1956; in 2025 they were given to 8,754 and 15 babies.
Jack and Jac, year by year
Girls and boys together; Jack solid, Jac dashed.
| Jack | Jac | |
|---|---|---|
| Births 2025 | 8,754 | 15 |
| Rank 2025 | #15 among boys’ names | #5,964 among boys’ names |
| Recorded since 1880 | 759,677 | 615 |
| Peak year | 1927 | 1956 |
| Girls | 0.4% | 0% |
| Alive, estimated | 414,000 | 476 |
| Median age | 23 | 24 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.