Kozo
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Kozo is a given name written in the Latin script, with more bearers in Japan than in any other country.
- JPJapan≈1 in 10K(inferred from the name graph)
- USUnited States≈1 in 1.5M
- AOAngola≈1 in 80K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- Japan (inferred from the name graph)
- Sources
- 95 (measured from records)
- ≈1 in 10K (inferred from the name graph)
≈12,000 people, est.
Highest-authority source
Japan, est.
measured from records inferred from the name graph
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Attested in 1 language in the etymology graph.
Where in the world(measured from records)
Kozo counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.
| Country | Most common spelling | Sources | |||
|---|---|---|---|---|---|
| JP Japan | ≈12,000 est. | ≈1 in 10K | — | Kozo | 95 |
| CN China | ≈1,900 est. | ≈1 in 727K | — | Kozo | 7 |
| AO Angola | ≈410 est. | ≈1 in 80K | — | Kozo | 1 |
| US United States | ≈230 est. | ≈1 in 1.5M | 126 | Kozo | 80 |
| DZ Algeria | ≈73 est. | ≈1 in 591K | — | Kozo | 3 |
| BR Brazil | 66 | 1 in 3.2M | 93 | — | — |
| EE Estonia | ≈9 est. | ≈1 in 141K | listed | — | 1 |
Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.
Registers cited: Census Bureau — Surname Frequency 2000; IBGE — names by decade (Kaggle mirror); Brasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA); the ee-siseministeerium-registry register. Figures without a register are Mondonomo estimates; see Methodology.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).
Other recorded senses(measured from records)
Kozo is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Czech, vocative singular of koza
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In io, thing.
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.
Notable people with this name(measured from records)
- Kōzō Saekib. 1912JPJapanese film director (1912–1972)
- Kōzō Masudab. 1918JPJapanese shogi player (1918-1991)
- Kozo Igarashib. 1926JPJapanese politician
- Kōzō Iizukab. 1931JPJapanese engineer (1931–2024)
- Kozo Watanabeb. 1932JPJapanese politician (1932-2020)
- Kōzō Murashitab. 1953JPJapanese singer-songwriter
- Kōzō Shioyab. 1955JPJapanese voice actor and actor
- Kozo Nagayamab. 1956JPJapanese film director
- Kozo Tashimab. 1957JPJapanese footballer (born 1957)
- Kozo Takedab. 1972JPJapanese martial artist
The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).
Evidence(measured from records)
Attested in 13 sources across 5 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| BR Brazil | Brasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA) | — | 93 | #19,579 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2022 | 66 | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 64 | #55,051 |
| BR Brazil | IBGE — Nomes (census name API) | — | 61 | #44,638 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1940 | 38 | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | 1940 | 28 | — |
| EE Estonia | Siseministeerium — population register name list 2023 | 2023 | — | — |
Reference works 2
- Dictionary of American Family Names
- Wikidata name items (native-script + romanized given/family names)
These works list the name; their figures are licensed and are not reproduced here.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- Is Kozo a male or female name?
- Kozo is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
- In which country does Kozo have the most bearers?
- Mondonomo estimates about 12 thousand people named Kozo in Japan, more than in any other country we hold, where it is most often spelled kozo.
- How common is the name Kozo?
- In Brazil, the national register counted 66 people named Kozo in 2022, about 1 in 3.2 million residents.
What do you want to know about Kozo?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/kozoThe same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), and bulk access is licensed separately.
About this data
measured from records inferred from the name graph machine-generated
These figures come from the data snapshot of and will change as it is rebuilt.
Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.
Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.
Cite this page Mondonomo, “Kozo”. Data snapshot 2026-10-10.