Sidnei vs Sidney
Side-by-side comparison of Sidnei and Sidney - popularity rank, total births, peak decade, and historical trends from Social Security Administration data.
Which name is more popular?
| Metric | Sidnei | Sidney |
| Current Rank | Unranked | #1371 |
| Total Births (all years) | 24 | 84,202 |
| Peak Year | 2006 | 1918 |
| Peak Year Births | 7 | 1,879 |
| Peak Decade | 2000s | 1920s |
| Gender | Girl | Boy |
| First Recorded Year | 1995 | 1880 |
Births by Decade
| Decade | Sidnei | Sidney |
| 1880s | - | 1,505 |
| 1890s | - | 1,612 |
| 1900s | - | 1,981 |
| 1910s | - | 12,793 |
| 1920s | - | 14,201 |
| 1930s | - | 9,420 |
| 1940s | - | 9,608 |
| 1950s | - | 9,632 |
| 1960s | - | 6,844 |
| 1970s | - | 3,817 |
| 1980s | - | 3,333 |
| 1990s | 5 | 3,829 |
| 2000s | 13 | 2,729 |
| 2010s | 6 | 1,991 |
| 2020s | - | 907 |
Recent Annual Births (2014–present)
| Year | Sidnei | Sidney |
| 2014 | - | 167 |
| 2015 | - | 180 |
| 2016 | - | 196 |
| 2017 | - | 177 |
| 2018 | - | 168 |
| 2019 | - | 177 |
| 2020 | - | 166 |
| 2021 | - | 132 |
| 2022 | - | 166 |
| 2023 | - | 160 |
| 2024 | - | 137 |
| 2025 | - | 146 |