Omori
surname · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
/oʊˈmɔɹi/(machine-generated) pronunciation, model-generated
Omori is a surname written in the Latin script, with more bearers in Japan than in any other country. Recorded meaning: Borrowed from Japanese 大森 (Ōmori).
- JPJapan≈1 in 4.7K(inferred from the name graph)
- USUnited States1 in 579K
- NGNigeria≈1 in 95K
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
- 123 (measured from records)
- ≈1 in 4.7K (inferred from the name graph)
≈27,000 people, est.
Highest-authority source
Japan, est.
measured from records inferred from the name graph
Meaning & origin(measured from records)
Borrowed from Japanese 大森 (Ōmori).
Sources 1
Attested across 2 languages in the etymology graph.
Where in the world(measured from records)
Omori 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 | #974 | ≈27,000 est. | ≈1 in 4.7K | — | Omori | 123 |
| NG Nigeria | — | ≈2,300 est. | ≈1 in 95K | — | Omori | 11 |
| US United States | — | 575 | 1 in 579K | 618 | Omori | 99 |
| BR Brazil | — | 563 | 1 in 376K | 563 | — | — |
| CA Canada | — | ≈66 est. | ≈1 in 570K | — | Omori | 15 |
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; Census Bureau — Surname Frequency 2000; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname). 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)
Omori is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Romanian, second-person singular present indicative/subjunctive of omorî
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)
- Fusakichi Omorib. 1868JPJapanese seismologist (1868–1923)
- Sōgen Ōmorib. 1904JPJapanese Buddhist monk
- Kazuki Ōmorib. 1952JPJapanese film director and screenwriter (1952-2022)
- Tatsushi Ōmorib. 1970JPfilmmaker
- Nao Ōmorib. 1972JPJapanese actor
- Masayuki Omorib. 1976JPJapanese association football player
- Hiroki Omorib. 1990JPJapanese association football player
- Kotaro Omorib. 1992JPJapanese association football player
- Nichika Ōmorib. 1994JPJapanese seiyū
- Motoki Ohmorib. 1996JPnot in their usual nameJapanese singer-songwriter
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)
Evidence(measured from records)
Attested in 10 sources across 6 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 618 | #34,630 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 575 | #38,484 |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 563 | #15,297 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 540 | #43,119 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
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 Omori mean, and where does it come from?
- Borrowed from Japanese 大森 (Ōmori). Recorded by Wiktionary.
- How do you pronounce Omori?
- A machine transcription gives /oʊˈmɔɹi/ (IPA) for Japanese.
- In which country does Omori have the most bearers?
- Mondonomo estimates about 27 thousand people named Omori in Japan, more than in any other country we hold, where it is most often spelled omori.
- How common is the name Omori?
- In the United States, the national register counted 575 people named Omori in 2010, about 1 in 579 thousand residents.
- How common is Omori compared with other names?
- In Japan, Omori is the 974th most common surname of 142,159 surnames recorded there.
What do you want to know about Omori?
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/omoriThe 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, “Omori” — the 974th most common surname in Japan. Data snapshot 2026-10-10.