Brennan vs Brendan

Side-by-side comparison of Brennan and Brendan — popularity rank, total births, peak decade, and historical trends from Social Security Administration data.

Name A

Brennan

Boy name · Rank #1055

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Name B

Brendan

Boy name · Rank #1010

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Which name is more popular?

Metric Brennan Brendan
Current Rank #1055 #1010
Total Births (all years) 33,032 91,612
Peak Year 2009 1999
Peak Year Births 1,464 3,994
Peak Decade 2000ss 1990ss
Gender Boy Boy
First Recorded Year 1916 1912

Births by Decade

Decade Brennan Brendan
1910ss 5 85
1920ss — 165
1930ss — 289
1940ss 6 444
1950ss 80 984
1960ss 394 3,437
1970ss 934 6,931
1980ss 2,719 14,601
1990ss 8,300 28,511
2000ss 11,745 25,836
2010ss 7,625 8,907
2020ss 1,224 1,422

Recent Annual Births (2014–present)

Year Brennan Brendan
2014 806 922
2015 690 825
2016 549 688
2017 464 560
2018 382 490
2019 340 422
2020 315 343
2021 265 327
2022 224 269
2023 213 262
2024 207 221

Data Sources

Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, ssa.gov/oact/babynames.
Source: SSA Annual Name Rankings, 1916–2024.

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