Theory vs Thelma

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

Name A

Theory

Girl name · Rank #7849

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Name B

Thelma

Girl name · Rank #4373

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Which name is more popular?

Metric Theory Thelma
Current Rank #7849 #4373
Total Births (all years) 142 225,429
Peak Year 2023 1921
Peak Year Births 19 7,839
Peak Decade 2020ss 1920ss
Gender Girl Girl
First Recorded Year 2006 1880

Births by Decade

Decade Theory Thelma
1880ss — 76
1890ss — 2,385
1900ss — 18,265
1910ss — 57,011
1920ss — 68,767
1930ss — 36,254
1940ss — 20,229
1950ss — 11,775
1960ss — 5,895
1970ss — 2,158
1980ss — 1,170
1990ss — 687
2000ss 5 379
2010ss 60 239
2020ss 77 139

Recent Annual Births (2014–present)

Year Theory Thelma
2014 8 25
2015 7 27
2016 8 32
2017 5 26
2018 7 27
2019 8 22
2020 8 27
2021 18 31
2022 18 26
2023 19 23
2024 14 32

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, 2006–2024.

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