Compare two names
Casidy and Cassidy side by side: Casidy peaked in 2001 and Cassidy in 1999; in 2025 they were given to 0 and 609 babies.
Casidy and Cassidy, year by year
Girls and boys together; Casidy solid, Cassidy dashed.
| Casidy | Cassidy | |
|---|---|---|
| Births 2025 | 0 | 609 |
| Rank 2025 | not ranked | #541 among girls’ names |
| Recorded since 1880 | 347 | 64,583 |
| Peak year | 2001 | 1999 |
| Girls | 100% | 94% |
| Alive, estimated | 342 | 63,600 |
| Median age | 25 | 25 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.