Rex vs Olivia
Side-by-side comparison of Rex and Olivia - popularity rank, total births, peak decade, and historical trends from Social Security Administration data.
Which name is more popular?
| Metric | Rex | Olivia |
| Current Rank | #785 | #1 |
| Total Births (all years) | 60,449 | 567,345 |
| Peak Year | 1951 | 2014 |
| Peak Year Births | 1,503 | 19,840 |
| Peak Decade | 1950s | 2010s |
| Gender | Boy | Girl |
| First Recorded Year | 1880 | 1880 |
Births by Decade
| Decade | Rex | Olivia |
| 1880s | 183 | 618 |
| 1890s | 305 | 1,099 |
| 1900s | 497 | 1,575 |
| 1910s | 3,253 | 3,545 |
| 1920s | 5,627 | 4,982 |
| 1930s | 5,949 | 3,922 |
| 1940s | 6,671 | 7,201 |
| 1950s | 13,499 | 6,100 |
| 1960s | 8,735 | 4,016 |
| 1970s | 3,359 | 7,846 |
| 1980s | 2,532 | 14,060 |
| 1990s | 1,740 | 75,913 |
| 2000s | 2,048 | 156,054 |
| 2010s | 3,945 | 184,561 |
| 2020s | 2,106 | 95,853 |
Recent Annual Births (2014–present)
| Year | Rex | Olivia |
| 2014 | 389 | 19,840 |
| 2015 | 374 | 19,729 |
| 2016 | 423 | 19,414 |
| 2017 | 434 | 18,778 |
| 2018 | 421 | 18,061 |
| 2019 | 410 | 18,577 |
| 2020 | 377 | 17,691 |
| 2021 | 380 | 17,847 |
| 2022 | 380 | 16,670 |
| 2023 | 368 | 15,329 |
| 2024 | 320 | 14,772 |
| 2025 | 281 | 13,544 |