Kazuo

First son or harmony.
Japan origin · Boy name
97% boys3% girls
#1661US 2023
539Births / yr
Stable
757All-time births
📅 Since 191100.01% of births at peak
How to pronounce Kazuo
kah·ZOO·oh
/ˌkɑ.ˈzuː.oʊ/ · stress on ZOO · 3 syllables
First son or harmony.
Japan origin · Boy name

What does Kazuo mean and where does it come from?

Kazuo (和夫) is a common name in Japan, and it can be written with different kanji that convey various meanings, often including 'harmony' (和) and 'man' or 'husband' (夫). It signifies the traditional role of the first-born son in a family while also embodying a sense of balance. Kazuo has seen notable

Cultural significance
Kazuo has been a cherished name across cultures, particularly in Japan-speaking communities, where it reflects values of first son or harmony..
Peak popularity
Reached #937 in 1921 — currently #1661 in the US.
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Related Reading
Japan-origin baby names with timeless appeal
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What middle names flow best with Kazuo?

Kazuo works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful

Kazuo Grace
Most popular combo · classic
Kazuo Rose
Floral · soft ending
Kazuo Mae
Sweet · timeless
Kazuo Claire
French influence · crisp
Kazuo Jane
Literary · strong
Kazuo Skye
Modern · airy feel
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Middle Names
The best middle names for Kazuo
Browse ideas →

How popular is Kazuo right now?

Holding steady — currently #1661 in the US out of 135.5k tracked names

US Trend 19152023#1661 · Top 1.2%
1915
1920
1925
1930
1935
2021
2022
2023
YearUS RankBirthsvs Prior Year
2023#1661539▲ up 5 · +4% births
2022#1666519▲ up 5 · +6% births
2021#1671489▲ up 419 · +3662% births
1935#209013▼ down 601 · -48% births
1930#148925▼ down 348 · -36% births
1925#114139▼ down 71 · -11% births
1920#107044▲ up 143 · +47% births
1915#121330

The story of Kazuo

Kazuo entered American naming records in 1911 and has been in use for over 113 years. With 757 total births recorded, Kazuo remains relatively uncommon. Once ranked #1213 in 1915, the name has become less common in recent years, sitting at #1661 in 2023.

Names that peaked alongside Kazuo in 1921:

Kazuo by decade

Kazuo peaked in the 1920s. See all 1920s names →

DecadeBirths
1910s241
1920s375
1930s106
1940s11
2000s24
💎Kazuo has only 757 total recorded births since 1911 — rarer than 99% of names in our database.

What are good nicknames for Kazuo?

Common
KazKazieKazy

How is Kazuo written in other languages?

一男, 和夫, etc.
Japanese Kanji

Common questions about the name Kazuo

What does the name Kazuo mean?
Kazuo means "First son or harmony." — a name rooted in Japan tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.
How popular is the name Kazuo?
Kazuo is currently a distinctive and less common name as a boy name in the US and is holding steady in popularity, a reliable classic that parents consistently choose.
What is the cultural origin of Kazuo?
Kazuo originates from Japan tradition. Japan names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
How do you pronounce the name Kazuo?
Kazuo is a three-syllable name pronounced K AA2 Z UW1 OW0. The pronunciation is straightforward for English speakers, and the name reads clearly on paper — an important practical consideration for parents.
What sibling names go well with Kazuo?
Kazuo pairs beautifully with sibling names that share a similar Japan heritage or complement its melodic and flowing sound. Names with a similar vibe create a cohesive sibling set without matching too closely.