Brennan vs Olivia

Side-by-side comparison of Brennan and Olivia — 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

Olivia

Girl name · Rank #1

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Which name is more popular?

Metric Brennan Olivia
Current Rank #1055 #1
Total Births (all years) 33,032 553,664
Peak Year 2009 2014
Peak Year Births 1,464 19,836
Peak Decade 2000ss 2010ss
Gender Boy Girl
First Recorded Year 1916 1880

Births by Decade

Decade Brennan Olivia
1880ss — 618
1890ss — 1,099
1900ss — 1,575
1910ss 5 3,545
1920ss — 4,982
1930ss — 3,922
1940ss 6 7,201
1950ss 80 6,100
1960ss 394 4,015
1970ss 934 7,849
1980ss 2,719 14,061
1990ss 8,300 75,913
2000ss 11,745 156,048
2010ss 7,625 184,528
2020ss 1,224 82,208

Recent Annual Births (2014–present)

Year Brennan Olivia
2014 806 19,836
2015 690 19,726
2016 549 19,409
2017 464 18,777
2018 382 18,055
2019 340 18,569
2020 315 17,682
2021 265 17,841
2022 224 16,654
2023 213 15,313
2024 207 14,718

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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