Kazuko
Meaning
harmonious child
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Kazuko has stayed rare in US records the whole time: no peak decade to name.
See popularity in Brazil
Popularity in Brazil
630 people · the #11,400 first name in Brazil · about 1 in 333,333 · median age 78
Among people named Kazuko living in Brazil at the 2022 census, more were born in the 1940s than in any other decade.
Source: IBGE, Censo Demográfico 2022
When you meet Kazuko
Most people given the name Kazuko in the United States were born between 1930 and 1949. The Kazuko you meet today is most often in her 80s or 90s.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Kazuko deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Kazuko truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Kazuko fits with your family’s names and surname.
Keep exploring
Does Kazuko fit YOUR family?
nametree reads your family’s names and finds the ones that belong. Free, private, no ads.
Add Kazuko to your family’s tree →