Compare two names
Cydney and Sydney side by side: Cydney peaked in 2000 and Sydney in 2000; in 2025 they were given to 9 and 893 babies.
Cydney and Sydney, year by year
Girls and boys together; Cydney solid, Sydney dashed.
| Cydney | Sydney | |
|---|---|---|
| Births 2025 | 9 | 893 |
| Rank 2025 | #10,269 among girls’ names | #348 among girls’ names |
| Recorded since 1880 | 5,170 | 187,700 |
| Peak year | 2000 | 2000 |
| Girls | 99.5% | 95% |
| Alive, estimated | 4,960 | 178,000 |
| Median age | 29 | 24 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.