Compare two names
Sidnie and Sydney side by side: Sidnie peaked in 2001 and Sydney in 2000; in 2025 they were given to 0 and 893 babies.
Sidnie and Sydney, year by year
Girls and boys together; Sidnie solid, Sydney dashed.
| Sidnie | Sydney | |
|---|---|---|
| Births 2025 | 0 | 893 |
| Rank 2025 | not ranked | #348 among girls’ names |
| Recorded since 1880 | 312 | 187,700 |
| Peak year | 2001 | 2000 |
| Girls | 100% | 95% |
| Alive, estimated | 308 | 178,000 |
| Median age | 26 | 24 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.