Yamaguchi

surname · Latin script

Meaning: Kristi, US figure skater

Recorded for both men and women· direction only, no split published

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

Yamaguchi is a surname written in the Latin script, with more bearers in Japan than in any other country, where it is the 77th most common surname.

rarermore common
  • JPJapan≈1 in 454(inferred from the name graph)
  • USUnited States1 in 114K
  • SGSingapore≈1 in 100K

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)

≈280,000 people, est.

Sources
213 (measured from records)

Highest-authority source

≈1 in 454 (inferred from the name graph)

Japan, est.

measured from records inferred from the name graph

Meaning & origin(measured from records)

Kristi, US figure skater

Sources 1

  • Pronouncing Dictionary of Proper Names

Attested across 2 languages in the etymology graph.

Where in the world(measured from records)

Yamaguchi 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 Yamaguchi is recorded, by country
CountryMost common spellingSources
JP Japan#77≈280,000 est.≈1 in 454—Yamaguchi173
US United States—2,9121 in 114K2.9KYamaguchi213
BR Brazil—1,9561 in 108K2K——
PH Philippines—≈340 est.≈1 in 318K—Yamaguchi30
CA Canada—≈340 est.≈1 in 112K—Yamaguchi36
SG Singapore—≈62 est.≈1 in 100K—Yamaguchi17

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). 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)

Yamaguchi is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • Portuguese surname4 spellings in the group

    Most recorded in Brazil, United States, Peru, Argentina

    Languages: Portuguese, Spanish

    Also written Yamagüchi

  • Thai surname25 spellings in the group

    Most recorded in Thailand, United States, Laos

    Languages: Thai, Lao

    Also written ยามากูชิ, ยามากูจิ, ยามากุจิ, ยามากู, ยามากุชิ

49 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)

190019201940196019802000Tsutomu Yamaguchi, b. 1916Yoshiko Ōtaka, b. 1920Otoya Yamaguchi, b. 1943Natsuo Yamaguchi, b. 1952Tsuyoshi Yamaguchi, b. 1954Mitsuo Yamaguchi, b. 1965Noriyuki Yamaguchi, b. 1966Akira Yamaguchi, b. 1969Kristi Yamaguchi, b. 1971Mayu Yamaguchi, b. 1983

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 Colleague,
InformalHello,

Evidence(measured from records)

Attested in 21 sources across 13 countries.

Official registers attesting Yamaguchi
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 201020102.9K#10,931
US United StatesCensus Bureau — Surname Frequency 200020002.9K#10,273
US United StatesCensus Bureau — Surname Frequency 202020202.8K#10,961
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—2K#4,963
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 3

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • Wikipedia surname tokens
  • 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

What does the name Yamaguchi mean, and where does it come from?
Kristi, US figure skater Recorded by Pronouncing Dictionary of Proper Names.
How do you pronounce Yamaguchi?
A machine transcription gives /jɑməɡʉtʃi/ (IPA) for Japanese.
In which country does Yamaguchi have the most bearers?
Mondonomo estimates about 276 thousand people named Yamaguchi in Japan, more than in any other country we hold, where it is most often spelled yamaguchi.
How common is the name Yamaguchi?
In the United States, the national register counted 2,912 people named Yamaguchi in 2010, about 1 in 114 thousand residents.
How common is Yamaguchi compared with other names?
In Japan, Yamaguchi is the 77th most common surname of 142,159 surnames recorded there.

What do you want to know about Yamaguchi?

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

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, “Yamaguchi” — the 77th most common surname in Japan. Data snapshot 2026-10-10.

See how Yamaguchi parses inside a full name →