Given name
Kazuo
“a peaceful man”
Kazuo is used as a given name. One Japanese interpretation is “a peaceful man.”
Original Japanese数男
Meaning & origin
What it means
One Japanese interpretation is “a peaceful man.”
Where it comes from
An origin associated with this spelling is Japanese.
The story
Published U.S. birth records include this spelling as early as 1911. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Kazuo through the years
- Babies since 1880
- 762
- 762 boys · 0 girls
- Most popular year
- 1921
- 57 babies
- 2025
- 5
- #12,988 for boys
- 2021–25 vs 2016–20
- —
- Too few births to compare
By the numbers
In 2025, this name appeared in 5 U.S. birth records for boys, ranking No. 12,988 among boys’ names. The recent annual counts are too incomplete to establish a ten-year comparison. Its largest published annual count for boys was 57 in 1921. Published U.S. population figures for this spelling include 527 as a first name in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Kazuo’s family of names
In Japanese usage, Kazuo is a Roman-alphabet rendering of 一夫. In Japanese usage, Kazuo is a Roman-alphabet rendering of 一男. In Japanese usage, Kazuo is a Roman-alphabet rendering of 一雄.
The ring: spellings.
Spellings & scripts 11
The same name written differently, including transliterations into other scripts.
- 数男original script · Japanese
- 数雄original script · Japanese
- 一男original script · Japanese
- 一雅original script · Japanese
- 一雄original script · Japanese
- 一夫original script · Japanese
- 和男original script · Japanese
- 和雄original script · Japanese
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People named Kazuo
- Kazuo IshiguroBritish novelist (born 1954)
- Kazuo OzakiJapanese association football playerborn 1960
- Kazuo SaitoJapanese association football player and managerborn 1951
- Kazuo ImanishiJapanese association football player and manger (1941-2026)
- Kazuo EchigoJapanese association football playerborn 1965
- Kazuki TakahashiJapanese manga artist (1961-2022)
- Kazuo UchidaJapanese association football player and managerborn 1962
- Kaz HiraiJapanese businessmanborn 1960
- Kazuo HasegawaJapanese actor (1908–1984)
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Kazuo, these share its style, era, origin or sound, from outside its own family.
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Kenichi
Kenichi is a masculine given name from Japanese.
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