Kazuko
Meaningoften harmonious child · Japanese
Kazuko is a Japanese girl name often meaning “harmonious child”. 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, Kazuko would score 23 points, thanks largely to the Z (worth 10). A high-scoring name!
- GenerationKazuko peaked in 1927, which makes it a Greatest Generation name, think great-grandparents.
- HistoryKazuko first shows up in US birth records in 1915, the first year at least 5 babies got it. It has been in use for 110 years since.
US births per million girls, 1915–2025
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Popularity: U.S. Social Security Administration (babies with 5+ births per year).
About the name Kazuko
Kazuko is a girl name of Japanese origin meaning “often harmonious child”. With 3 syllables it has a flowing, lyrical sound, so a short middle name balances it nicely. It was most fashionable in the 1920s, which gives it a vintage, grandparent-chic charm. It's rarely heard today, so it stands out while still being a real, established name.
Origin:Japanese names
More Japanese girl names
- Girl name: Naomi · pleasantness
- Girl name: Noa · movement
- Girl name: Reina · queen
- Girl name: Aya · sign, verse
- Girl name: Hana · one; flower in Japanese
- Girl name: Kiyomi · often pure beauty
- Girl name: Yuna · often gentle
- Unisex name: Akira · bright, clear
Questions about the name Kazuko
What does the name Kazuko mean?
Kazuko means “often harmonious child” and comes from Japanese. Other girl names with a similar meaning include Honoka (“often harmonious flower”), Kazue (“often harmonious branch”), Kazuha (“often harmonious leaf”) and Kazumi (“often harmonious beauty”).
What is the origin of the name Kazuko?
Kazuko is Japanese in origin. Other Japanese names to consider are Naomi (“pleasantness”), Noa (“movement”), Reina (“queen”) and Aya (“sign, verse”).
Is Kazuko a boy or girl name?
Kazuko is a girl name.
How popular is the name Kazuko?
Kazuko is rare: fewer than 5 US girls got it in 2025, and it was last given to 5 or more in 1945. It peaked at #955 in 1927, so it's a name with history that few kids share today.
What names are similar to Kazuko?
If you like Kazuko, you might also like Honoka, Kazue, Kazuha and Kazumi.
What should I know before naming my baby Kazuko?
Kazuko is a Japanese girl name often meaning “harmonious child”. 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.