Compare two names
Kasimir and Casimir side by side: Kasimir peaked in 2021 and Casimir in 1919; in 2025 they were given to 6 and 73 babies.
Kasimir and Casimir, year by year
Girls and boys together; Kasimir solid, Casimir dashed.
| Kasimir | Casimir | |
|---|---|---|
| Births 2025 | 6 | 73 |
| Rank 2025 | #11,340 among boys’ names | #2,039 among boys’ names |
| Recorded since 1880 | 80 | 5,248 |
| Peak year | 2021 | 1919 |
| Girls | 0% | 0% |
| Alive, estimated | under 100 | 1,610 |
| Median age | n/a | 27 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.