Okochi

surname · Latin script

Recorded as a male name· opposite-gender records fall within measured source noise

/okotʃi/(machine-generated) pronunciation, model-generated

Okochi is a surname written in the Latin script, with more bearers in Brazil than in any other country. Recorded meaning: Borrowed from Japanese 大河内 (Ōkōchi).

rarermore common
  • BRBrazil1 in 4.5M(measured from records)
  • BEBelgium1 in 5.9M
  • PLPoland1 in 19M

carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.

Brazil (measured from records)

47 people

Sources
58 (measured from records)

Highest-authority source

1 in 4.5M (inferred from the name graph)

Brazil

measured from records inferred from the name graph

Meaning & origin(measured from records)

Borrowed from Japanese 大河内 (Ōkōchi).

Sources 1

Attested in 1 language in the etymology graph.

Where in the world(measured from records)

Okochi 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.

Where Okochi is recorded, by country
CountryMost common spellingSources
BR Brazil471 in 4.5M47——
BE Belgium21 in 5.9M2——
PL Poland21 in 19M2——
JP Japan———Okochi58
US United States——listedOkochi53
CA Canada———Okochi8

47 people counted by IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname). 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: the us-wru-surnames-voterfile register; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Familienaam.be — Belgian family-name frequency (population register); dane.gov.pl — PESEL living persons (surnames). 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 names spelled this way(inferred from the name graph)

Okochi is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • a separate name3 spellings in the group

    Also written Ōkōchi, Ōkochi

23 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Notable people with this name(measured from records)

18001850190019502000Ōkōchi Masatada, b. 1844Masatoshi Ōkōchi, b. 1878Denjirō Ōkōchi, b. 1898Kazuo Ōkouchi, b. 1905Shōji Ōkouchi, b. 1928Nami Ōkōchi, b. 1960Ichirō Ōkouchi, b. 1968Shiho Ōkouchi, b. 1971Masako Okōchi, b. 1983Misa Ōkouchi, b. 1984

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).

How to address them(machine-generated)

FormalDear Mr Okochi,
InformalHi Okochi,

Evidence(measured from records)

Attested in 7 sources across 5 countries.

Reference works 1

  • Wikipedia surname tokens

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

What does the name Okochi mean, and where does it come from?
Borrowed from Japanese 大河内 (Ōkōchi). Recorded by Wiktionary.
How do you pronounce Okochi?
A machine transcription gives /okotʃi/ (IPA) for Swahili.
In which country does Okochi have the most bearers?
In Brazil, the national register counted about 47 people named Okochi, more than in any other country we hold.
Where is Okochi most common?
Okochi is densest in Brazil, where the national register counts about 1 in 4.5 million people carrying it.
How common is the name Okochi?
In Brazil, the national register counted 47 people named Okochi, about 1 in 4.5 million residents.

What do you want to know about Okochi?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

Please leave out anyone's personal details (see Privacy).

Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/okochi

The 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), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.

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, “Okochi”. Data snapshot 2026-10-10.

See how Okochi parses inside a full name →