Holding steady, #12,008 for boys today.
Popularity of Kazuo since 1911
Babies named Kazuo per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1910s | 241 |
| 1920s | 375 |
| 1930s | 106 |
| 1940s | 11 |
| 1950s | 0 |
| 1960s | 0 |
| 1970s | 0 |
| 1980s | 0 |
| 1990s | 0 |
| 2000s | 24 |
| 2010s | 0 |
| 2020s | 5 |
Meaning & origin
Kazuo is a Japanese name that first appeared in U.S. records in 1911. It reached its peak popularity in 1921, ranking as the most common among the decades of the early 20th century. With a current rank of 12,008 and a 1-in-341,615 incidence in 2025, it remains a rare but recognized choice. The name's trajectory is stable, suggesting steady but infrequent use over the past century. While no top states are associated with Kazuo, it carries a classic Japanese heritage that may appeal to families honoring that background.
Kazuo is a traditional Japanese male name composed of two kanji elements. The first element, kazu, often means 'one,' 'harmony,' or 'peace,' while the second element, o, means 'man' or 'male.' The name has been in use since at least the early 20th century, with a peak in popularity in the 1920s. It remains a classic name in Japan, though less common in recent decades.
Nicknames & variants
Nicknames: Kazu
Sibling names for Kazuo
Names that share Kazuo's style, for a brother or sister.
