Brennen
How to say it: BREN-un · /ˈbrɛnən/
Variant spelling of Brennan; from Irish Braonán, a diminutive of braon 'moisture/drop', or from a surname meaning 'descendant of Braonán'.
Brennen was the 868th most popular boys’ name in the United States in 2025, given to 20 babies (Social Security Administration). Its busiest decade was the 2000s, its births are down about 70% in ten years, and it is projected to slip to #1,138 by 2030.
Updated · SSA 2025 data, published May 2026 · How we compute these figures
Key facts
| Rank among boys’ names, 2025 | #868 |
|---|---|
| Babies born in 2025 | 20 |
| Share of births | 1 in 13,477 |
| Peak decade | 2000s |
| Change over 10 years | −70% |
| Projected rank for 2030 (estimate) | #1,138 |
Sources: Social Security Administration (SSA). How we compute these figures.
Its life, decade by decade
Brennen is a newcomer: almost all of its history is from the last forty years.
What goes with it
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Brennen is about under 1 in 200.
Around the world
This spelling is used in English, Irish.
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