Marlo vs Mary

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

Name A

Marlo

Girl name · Rank #1703

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Name B

Mary

Girl name · Rank #132

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Which name is more popular?

Metric Marlo Mary
Current Rank #1703 #132
Total Births (all years) 7,155 4,139,160
Peak Year 1970 1921
Peak Year Births 593 73,984
Peak Decade 1970ss 1920ss
Gender Girl Girl
First Recorded Year 1931 1880

Births by Decade

Decade Marlo Mary
1880ss — 91,668
1890ss — 131,138
1900ss — 161,504
1910ss — 478,636
1920ss — 701,756
1930ss 36 572,997
1940ss 105 640,070
1950ss 113 625,609
1960ss 1,603 355,238
1970ss 2,546 126,254
1980ss 530 95,862
1990ss 329 75,713
2000ss 461 46,310
2010ss 905 25,683
2020ss 527 10,722

Recent Annual Births (2014–present)

Year Marlo Mary
2014 88 2,636
2015 77 2,642
2016 92 2,526
2017 75 2,424
2018 99 2,369
2019 116 2,239
2020 84 2,229
2021 102 2,100
2022 122 2,116
2023 100 2,081
2024 119 2,196

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, 1931–2024.

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