Kosei vs Kostas
Side-by-side comparison of Kosei and Kostas - popularity rank, total births, peak decade, and historical trends from Social Security Administration data.
Which name is more popular?
| Metric | Kosei | Kostas |
| Current Rank | Unranked | Unranked |
| Total Births (all years) | 90 | 372 |
| Peak Year | 2008 | 1974 |
| Peak Year Births | 9 | 17 |
| Peak Decade | 2010s | 1970s |
| Gender | Boy | Boy |
| First Recorded Year | 2000 | 1961 |
Births by Decade
| Decade | Kosei | Kostas |
| 1960s | - | 31 |
| 1970s | - | 107 |
| 1980s | - | 90 |
| 1990s | - | 22 |
| 2000s | 40 | 45 |
| 2010s | 43 | 45 |
| 2020s | 7 | 32 |
Recent Annual Births (2014–present)
| Year | Kosei | Kostas |
| 2014 | 5 | 5 |
| 2015 | - | 5 |
| 2016 | 5 | 5 |
| 2018 | 6 | - |
| 2019 | 5 | 5 |
| 2020 | 7 | 8 |
| 2022 | - | 7 |
| 2023 | - | 10 |
| 2025 | - | 7 |