Ohira

surname · Latin script

Meaning: Masayoshi, prime minister, Japan (Pronouncing Dictionary of Proper Names)

(measured from records)Officially recorded in 6 countries · latest register: Census Bureau, 2020

/uiɾɐ/(machine-generated) Portuguese · model-generated · uncertain

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Ohira is a surname written in the Latin script, with more bearers in Japan than in any other country.

  • JPJapan≈1 in 9.2K(inferred from the name graph)
  • BRBrazil1 in 913K
  • USUnited States1 in 1.3M

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.

Japan (inferred from the name graph)

≈13,000 people, est.

Record sources
81 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

≈1 in 9.2K (inferred from the name graph)

Japan, est.

measured from records inferred from the name graph

How to pronounce Ohira

  • Portuguese:/uiɾɐ/(machine-generated) model-generated

Readings marked model-generated were transcribed by a model; the others are quoted from the dictionary named.

Meaning & origin

(measured from records)

Masayoshi, prime minister, Japan

Cited for this meaning 1

  • Pronouncing Dictionary of Proper Names

Attested in 1 language in the etymology graph.

Where the surname Ohira is found

(measured from records)

Ohira 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 Ohira is recorded, by country
CountryMost common spellingSources
JP Japan≈13,000 est.≈1 in 9.2K—Ohira81
US United States2501 in 1.3M250Ohira65
BR Brazil2321 in 913K232——
GB United Kingdom≈25 est.≈1 in 2.8M10Ohira7
CA Canada≈13 est.≈1 in 3.2M—Ohira4
HK Hong Kong≈10 est.≈1 in 769K—Ohira4
DK Denmark31 in 2M3——

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 2010; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Surnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register); Danmarks Statistik — Hvor mange hedder...? (living-population name counts). 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)

Ohira is also recorded as 3 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname7 spellings in the group

    Most recorded in United States, Australia, United Kingdom, Germany

    Languages: English, German

    Also written Ōhira, Ôhira

  • Portuguese surname6 spellings in the group

    Most recorded in Brazil, United States, Bolivia, Colombia

    Languages: Portuguese, Spanish

    Also written Ôhira, Ōhira

  • a separate name3 spellings in the group

    Also written Ōhira, Ôhira

34 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)
191019201930Masayoshi Ōhira, b. 1910Toru Ohira, b. 1929Shuzo Ohira, b. 1930

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)
FormalOhira様Dear Ohira-san, (English)
Informalこんにちは、OhiraさんHi Ohira, (English)

Evidence

(measured from records)

12 registers and reference works attest this spelling, across 6 countries.

Register rows as of the 2026-10-09 data build.

Frequently asked questions

What does the name Ohira mean, and where does it come from?
Masayoshi, prime minister, Japan Recorded by Pronouncing Dictionary of Proper Names.
How do you pronounce Ohira?
In Portuguese /uiɾɐ/. Transcriptions are machine-generated except where a dictionary is named.
Which countries have the most people with the surname Ohira?
Mondonomo estimates about 13 thousand people named Ohira in Japan, more than in any other country we hold, where it is most often spelled ohira. After it come United States, Brazil, United Kingdom and Canada; the country table on this page ranks them.
How common is the name Ohira?
In the United States, the national register counted 250 people named Ohira in 2010, about 1 in 1.3 million residents.

What do you want to know about Ohira?

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

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, “Ohira”. Data snapshot 2026-10-13.

See how Ohira parses inside a full name →