Kazuya vs Kazuo
Side-by-side comparison of Kazuya and Kazuo - popularity rank, total births, peak decade, and historical trends from Social Security Administration data.
Which name is more popular?
| Metric | Kazuya | Kazuo |
| Current Rank | Unranked | Unranked |
| Total Births (all years) | 65 | 762 |
| Peak Year | 1987 | 1921 |
| Peak Year Births | 8 | 57 |
| Peak Decade | 2000s | 1920s |
| Gender | Boy | Boy |
| First Recorded Year | 1986 | 1911 |
Births by Decade
| Decade | Kazuya | Kazuo |
| 1910s | - | 241 |
| 1920s | - | 375 |
| 1930s | - | 106 |
| 1940s | - | 11 |
| 1980s | 13 | - |
| 1990s | 17 | - |
| 2000s | 24 | 24 |
| 2020s | 11 | 5 |
Recent Annual Births (2014–present)
| Year | Kazuya | Kazuo |
| 2023 | 6 | - |
| 2025 | 5 | 5 |