Seiji vs Seif
Side-by-side comparison of Seiji and Seif - popularity rank, total births, peak decade, and historical trends from Social Security Administration data.
Which name is more popular?
| Metric | Seiji | Seif |
| Current Rank | #9068 | #10363 |
| Total Births (all years) | 517 | 275 |
| Peak Year | 2007 | 2014 |
| Peak Year Births | 19 | 16 |
| Peak Decade | 2000s | 2010s |
| Gender | Boy | Boy |
| First Recorded Year | 1914 | 1998 |
Births by Decade
| Decade | Seiji | Seif |
| 1910s | 16 | - |
| 1920s | 74 | - |
| 1930s | 22 | - |
| 1970s | 28 | - |
| 1980s | 31 | - |
| 1990s | 75 | 7 |
| 2000s | 116 | 86 |
| 2010s | 106 | 113 |
| 2020s | 49 | 69 |
Recent Annual Births (2014–present)
| Year | Seiji | Seif |
| 2014 | 12 | 16 |
| 2015 | 11 | 14 |
| 2016 | 7 | 12 |
| 2017 | 12 | 6 |
| 2018 | 6 | 12 |
| 2019 | 5 | 12 |
| 2020 | 10 | 13 |
| 2021 | 7 | 7 |
| 2022 | 7 | 14 |
| 2023 | 9 | 14 |
| 2024 | 8 | 7 |
| 2025 | 8 | 14 |