Yokoi
surname · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
/iʊkɔɪ/(machine-generated) pronunciation, model-generated
Yokoi is a surname written in the Latin script, with more bearers in the United States than in any other country.
- USUnited States1 in 1.1M(measured from records)
- BRBrazil1 in 1.5M
- ESSpain1 in 6.3M
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.
- United States (measured from records)
- Sources
- 30 (measured from records)
- 1 in 1.1M (inferred from the name graph)
291 people, 2010
Highest-authority source
United States
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Attested across 2 languages in the etymology graph.
Where in the world(measured from records)
Yokoi 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 | |||
|---|---|---|---|---|---|
| US United States | 291 | 1 in 1.1M | 291 | Yokoi | 9 |
| BR Brazil | 144 | 1 in 1.5M | 144 | — | — |
| ES Spain | 8 | 1 in 6.3M | 8 | — | 1 |
| FR France | ≈2 est. | ≈1 in 37M | — | Yokoi | 30 |
| BE Belgium | 1 | 1 in 12M | 1 | — | — |
291 people counted by Census Bureau — Surname Frequency 2010, 2010. 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); INE — Padrón per-token widgets (current living counts, given + apellidos); Familienaam.be — Belgian family-name frequency (population 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).
Notable people with this name(measured from records)
- Yokoi Yayūb. 1702JPJapanese linguist, poet and philosopher
- Yokoi Shōnanb. 1809JPJapanese politician (1809-1869)
- Yokoi Tokiob. 1857JPJapanese Christian missionary, journalist, and member of the Japanese House of Representatives (1857-1927)
- Shoichi Yokoib. 1915JPJapanese World War II Soldier (1915−1997)
- Gunpei Yokoib. 1941JPJapanese video game designer (1941–1997)
- Kunie Yokoib. 1948JPJapanese radio personality
- Kōji Yokoib. 1968JPJapanese mangaka and illustrator
- Nobuaki Yokoib. 1970JPJapanese voice actor
- Zeebrab. 1971JPnot in their usual nameJapanese rapper and DJ
- Yuhana Yokoib. 2000JPJapanese figure skater
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 11 sources across 6 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 291 | #67,747 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 289 | #72,473 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 249 | #72,717 |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 144 | #47,933 |
| ES Spain | INE — Padrón per-token widgets (current living counts, given + apellidos) | — | 8 | #134,434 |
| BE Belgium | Familienaam.be — Belgian family-name frequency (population register) | 2008 | 1 | #203,807 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 2
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- 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
- How do you pronounce Yokoi?
- A machine transcription gives /iʊkɔɪ/ (IPA) for Japanese.
- In which country does Yokoi have the most bearers?
- In the United States, the national register counted about 291 people named Yokoi, more than in any other country we hold, where it is most often spelled yokoi.
- Where is Yokoi most common?
- Yokoi is densest in the United States, where the national register counts about 1 in 1.1 million people carrying it.
- How common is the name Yokoi?
- In the United States, the national register counted 291 people named Yokoi in 2010, about 1 in 1.1 million residents.
What do you want to know about Yokoi?
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/yokoiThe 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, “Yokoi”. Data snapshot 2026-10-10.