Compare two names
Kiernan and Kieran side by side: Kiernan peaked in 2008 and Kieran in 2025; in 2025 they were given to 43 and 828 babies.
Kiernan and Kieran, year by year
Girls and boys together; Kiernan solid, Kieran dashed.
| Kiernan | Kieran | |
|---|---|---|
| Births 2025 | 43 | 828 |
| Rank 2025 | #3,408 among boys’ names | #389 among boys’ names |
| Recorded since 1880 | 2,448 | 19,218 |
| Peak year | 2008 | 2025 |
| Girls | 28% | 8% |
| Alive, estimated | 2,400 | 18,600 |
| Median age | 20 | 16 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.