Therin vs Theo

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

Name A

Therin

Boy name

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Name B

Theo

Boy name · Rank #80

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Which name is more popular?

Metric Therin Theo
Current Rank Unranked #80
Total Births (all years) 95 35,830
Peak Year 2018 2023
Peak Year Births 9 4,140
Peak Decade 2010ss 2020ss
Gender Boy Boy
First Recorded Year 1962 1880

Births by Decade

Decade Therin Theo
1880ss — 93
1890ss — 118
1900ss — 226
1910ss — 714
1920ss — 980
1930ss — 680
1940ss — 440
1950ss — 371
1960ss 5 323
1970ss — 386
1980ss 5 540
1990ss 22 600
2000ss 30 1,386
2010ss 33 8,189
2020ss — 20,784

Recent Annual Births (2014–present)

Year Therin Theo
2014 — 550
2015 — 765
2016 — 952
2017 7 1,232
2018 9 1,554
2019 — 2,018
2020 — 2,225
2021 — 2,703
2022 — 3,642
2023 — 4,140
2024 — 4,129
2025 — 3,945

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, 1962–2018.

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