Compare two names
Brennan and Brennen side by side: Brennan peaked in 2009 and Brennen in 2009; in 2025 they were given to 236 and 20 babies.
Brennan and Brennen, year by year
Girls and boys together; Brennan solid, Brennen dashed.
| Brennan | Brennen | |
|---|---|---|
| Births 2025 | 236 | 20 |
| Rank 2025 | #1,003 among boys’ names | #4,881 among boys’ names |
| Recorded since 1880 | 35,487 | 9,217 |
| Peak year | 2009 | 2009 |
| Girls | 6% | 2% |
| Alive, estimated | 34,600 | 9,000 |
| Median age | 23 | 23 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.