Theodor vs Theo

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

Name A

Theodor

Boy name · Rank #2095

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Name B

Theo

Boy name · Rank #80

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Which name is more popular?

Metric Theodor Theo
Current Rank #2095 #80
Total Births (all years) 2,140 31,858
Peak Year 2022 2023
Peak Year Births 88 4,137
Peak Decade 2010ss 2020ss
Gender Boy Boy
First Recorded Year 1884 1880

Births by Decade

Decade Theodor Theo
1880ss 10 93
1890ss 6 118
1900ss — 226
1910ss 110 714
1920ss 139 980
1930ss 120 680
1940ss 113 440
1950ss 139 371
1960ss 124 322
1970ss 79 386
1980ss 98 540
1990ss 127 600
2000ss 189 1,386
2010ss 492 8,188
2020ss 394 16,814

Recent Annual Births (2014–present)

Year Theodor Theo
2014 56 550
2015 54 765
2016 62 952
2017 54 1,232
2018 65 1,554
2019 85 2,018
2020 79 2,225
2021 70 2,703
2022 88 3,639
2023 86 4,137
2024 71 4,110

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, 1884–2024.

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