Theodore vs Theo

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

Name A

Theodore

Boy name · Rank #4

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Name B

Theo

Boy name · Rank #80

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Which name is more popular?

Metric Theodore Theo
Current Rank #4 #80
Total Births (all years) 303,761 31,858
Peak Year 2024 2023
Peak Year Births 12,011 4,137
Peak Decade 2020ss 2020ss
Gender Boy Boy
First Recorded Year 1880 1880

Births by Decade

Decade Theodore Theo
1880ss 2,176 93
1890ss 2,300 118
1900ss 6,490 226
1910ss 21,106 714
1920ss 31,287 980
1930ss 24,957 680
1940ss 26,248 440
1950ss 29,049 371
1960ss 21,286 322
1970ss 13,570 386
1980ss 11,959 540
1990ss 10,109 600
2000ss 10,556 1,386
2010ss 40,525 8,188
2020ss 52,143 16,814

Recent Annual Births (2014–present)

Year Theodore Theo
2014 3,228 550
2015 4,155 765
2016 4,910 952
2017 5,970 1,232
2018 7,088 1,554
2019 7,894 2,018
2020 8,637 2,225
2021 9,597 2,703
2022 10,814 3,639
2023 11,084 4,137
2024 12,011 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, 1880–2024.

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