Kazuki
Meaningoften harmony, tree · Japanese
Kazuki is a Japanese boy name often meaning “harmony, tree”. In Japan, parents often choose a name as much for the kanji characters behind it as for its sound, so the same name can carry several shades of meaning. A meaning like this gives a child something to grow into, and a good story to tell when someone asks about their name. It sounds flowing and melodic, it's simple to spell and say, and it pairs well with a short middle name.
Did you know?
- Scrabble scoreIf names were allowed in Scrabble, Kazuki would score 23 points, thanks largely to the Z (worth 10). A high-scoring name!
- GenerationKazuki peaked in 1998, which makes it a Gen Z name. The typical Kazuki you'd meet today is about 27 years old.
- Roll callIn a typical school of 500 kids, your Kazuki would very likely be the only one. About 1 in 344,828 baby boys got the name in 2025.
- HistoryKazuki first shows up in US birth records in 1987, the first year at least 5 babies got it. It has been in use for 38 years since.
US births per million boys, 1987–2025
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Popularity: U.S. Social Security Administration (babies with 5+ births per year).
About the name Kazuki
Kazuki is a boy name of Japanese origin meaning “often harmony, tree”. With 3 syllables it has a flowing, lyrical sound, so a short middle name balances it nicely. It hit its peak in the 1990s, so it feels familiar without being trendy. It's rarely heard today, so it stands out while still being a real, established name.
Origin:Japanese names
More Japanese boy names
- Unisex name: Asa · healer
- Unisex name: Rio · river
- Unisex name: Akari · light, brightness
- Boy name: Kenzo · often healthy third son
- Boy name: Kenji · often strong second son
- Unisex name: Ren · often lotus
- Unisex name: Zen · meditation
- Unisex name: Mars · god of war
Questions about the name Kazuki
What does the name Kazuki mean?
Kazuki means “often harmony, tree” and comes from Japanese. Other boy names with a similar meaning include Harmony (“harmony”), Kazuma (“often harmony and truth”), Hirokazu (“often broad harmony”) and Hozho (“beauty, harmony”).
What is the origin of the name Kazuki?
Kazuki is Japanese in origin. Other Japanese names to consider are Asa (“healer”), Rio (“river”), Akari (“light, brightness”) and Kenzo (“often healthy third son”).
Is Kazuki a boy or girl name?
Kazuki is a boy name. In 2025, 5 US boys were named Kazuki.
How popular is the name Kazuki?
Kazuki ranked #12,008 for US boys in 2025, given to 5 babies. Its best year was 1998, when it reached #3,597. Over the last five years it has slipped 3,941 places.
What names are similar to Kazuki?
If you like Kazuki, you might also like Harmony, Kazuma, Hirokazu and Hozho.
What should I know before naming my baby Kazuki?
Kazuki is a Japanese boy name often meaning “harmony, tree”. In Japan, parents often choose a name as much for the kanji characters behind it as for its sound, so the same name can carry several shades of meaning. A meaning like this gives a child something to grow into, and a good story to tell when someone asks about their name. It sounds flowing and melodic, it's simple to spell and say, and it pairs well with a short middle name. Say it out loud with your last name and any middle names you're considering, and check the initials it makes.