Brennan
Brennan is outside the top 1,000 in 2024, with 207 births. Its best rank was 242nd, in 2009.
- Rank in 2024
- —outside the top 1,000
- Births in 2024
- 2070.01% of boys
- Peak year
- 20091,464 births
- Best rank
- #242in 2009
- Since 1916
- 35,250people given the name
The story in the numbers
33,032 boys have been named Brennan in the United States since 1916, according to Social Security records. The busiest single year was 2009, with 1,464 births.
It is falling: its share of births is 60% or less of what it was ten years ago.
Half of everyone given the name was born by 2003, and the 2000s alone account for 36%. It has spent 56 of 145 years in the top 1,000.
It is overwhelmingly a boy’s name: 2,218 girls have also been given it, 6.3% of the total.
Rank among boys, year by year
By decade
| Decade | boys named Brennan | |
|---|---|---|
| 1910s | 5 | |
| 1940s | 6 | |
| 1950s | 80 | |
| 1960s | 394 | |
| 1970s | 934 | |
| 1980s | 2,719 | |
| 1990s | 8,300 | |
| 2000s | 11,745 | |
| 2010s | 7,625 | |
| 2020s | 1,224 |
In 2009, its biggest year
Brennan was the 242nd most given boy’s name that year. The top five boys’ names of 2009 were Jacob, Ethan, Michael, Alexander and William. See all of 2009.
Names that rose and fell with Brennan
Same sex, most similar popularity curve over 145 years, in five-year steps — the shape of the line, not the size.
- Trentonpeak 2007
- Tyshawnpeak 2008
- Brennonpeak 2009
- Brennenpeak 2009
- Jacoreypeak 2009
- Kolinpeak 2003
- Miguelangelpeak 2007
- Trevinpeak 2008
What this page does not tell you. The Social Security data records how many babies were given a name, not what the name means or where it comes from — so neither do we. Counts cover people with a Social Security number; names given to fewer than five babies in a year are withheld. More on the data.