Theo vs Theadore

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

Name A

Theo

Boy name · Rank #80

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Name B

Theadore

Boy name · Rank #9881

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Which name is more popular?

Metric Theo Theadore
Current Rank #80 #9881
Total Births (all years) 31,858 4,000
Peak Year 2023 1927
Peak Year Births 4,137 91
Peak Decade 2020ss 1920ss
Gender Boy Boy
First Recorded Year 1880 1880

Births by Decade

Decade Theo Theadore
1880ss 93 47
1890ss 118 38
1900ss 226 137
1910ss 714 428
1920ss 980 770
1930ss 680 703
1940ss 440 592
1950ss 371 536
1960ss 322 323
1970ss 386 175
1980ss 540 110
1990ss 600 50
2000ss 1,386 28
2010ss 8,188 32
2020ss 16,814 31

Recent Annual Births (2014–present)

Year Theo Theadore
2014 550 —
2015 765 8
2016 952 —
2017 1,232 8
2018 1,554 5
2019 2,018 5
2020 2,225 5
2021 2,703 8
2022 3,639 6
2023 4,137 5
2024 4,110 7

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, 1880–2024.

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