Compare two names
Seth and Seith side by side: Seth peaked in 2000 and Seith in 1999; in 2025 they were given to 505 and 0 babies.
Seth and Seith, year by year
Girls and boys together; Seth solid, Seith dashed.
| Seth | Seith | |
|---|---|---|
| Births 2025 | 505 | 0 |
| Rank 2025 | #581 among boys’ names | not ranked |
| Recorded since 1880 | 166,288 | 125 |
| Peak year | 2000 | 1999 |
| Girls | 0.3% | 0% |
| Alive, estimated | 156,000 | 120 |
| Median age | 29 | 31 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.