Thelonious vs Theo
Side-by-side comparison of Thelonious and Theo - popularity rank, total births, peak decade, and historical trends from Social Security Administration data.
Which name is more popular?
| Metric | Thelonious | Theo |
| Current Rank | #5721 | #80 |
| Total Births (all years) | 467 | 35,830 |
| Peak Year | 2017 | 2023 |
| Peak Year Births | 23 | 4,140 |
| Peak Decade | 2010s | 2020s |
| Gender | Boy | Boy |
| First Recorded Year | 1960 | 1880 |
Births by Decade
| Decade | Thelonious | Theo |
| 1880s | - | 93 |
| 1890s | - | 118 |
| 1900s | - | 226 |
| 1910s | - | 714 |
| 1920s | - | 980 |
| 1930s | - | 680 |
| 1940s | - | 440 |
| 1950s | - | 371 |
| 1960s | 37 | 323 |
| 1970s | 24 | 386 |
| 1980s | 14 | 540 |
| 1990s | 36 | 600 |
| 2000s | 90 | 1,386 |
| 2010s | 170 | 8,189 |
| 2020s | 96 | 20,784 |
Recent Annual Births (2014–present)
| Year | Thelonious | Theo |
| 2014 | 16 | 550 |
| 2015 | 21 | 765 |
| 2016 | 20 | 952 |
| 2017 | 23 | 1,232 |
| 2018 | 20 | 1,554 |
| 2019 | 14 | 2,018 |
| 2020 | 16 | 2,225 |
| 2021 | 23 | 2,703 |
| 2022 | 17 | 3,642 |
| 2023 | 12 | 4,140 |
| 2024 | 16 | 4,129 |
| 2025 | 12 | 3,945 |