Kawai

surname · Latin script

Meaning: variously written, the original meaning is ‘meeting of (two) rivers’

(measured from records)Officially recorded in 14 countries · latest register: SSA, 2025

Pronunciation:

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

  • JPJapan≈1 in 1.5K(inferred from the name graph)
  • EEEstonia≈1 in 140K
  • ECEcuador≈1 in 190K

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)

≈83,000 people, est.

Record sources
140 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

≈1 in 1.5K (inferred from the name graph)

Japan, est.

measured from records inferred from the name graph

Meaning & origin

(measured from records)

variously written, the original meaning is ‘meeting of (two) rivers’. An ancient family by this name is listed in the Shinsen shojiroku. The most usual renderings are found mostly in eastern Japan; families in different localities seem to have their own different ways of writing the name. In Okinawa Island, it is written with characters meaning ‘river weir.

Cited for this meaning 1

  • Dictionary of American Family Names

Attested across 3 languages in the etymology graph.

Where in the world

(measured from records)

Kawai 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 Kawai is recorded, by country
CountryMost common spellingSources
JP Japan#350≈83,000 est.≈1 in 1.5KlistedKawai137
BR Brazil—≈990 est.≈1 in 215K122—1
US United States—7691 in 433K771Kawai140
HK Hong Kong—≈210 est.≈1 in 36K—Kawai11
PH Philippines—≈120 est.≈1 in 940K—Kawai13
EC Ecuador—≈94 est.≈1 in 192K1—1
FI Finland—291 in 192K29——
EE Estonia—≈10 est.≈1 in 136Klisted—4

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 2020; IBGE — names by decade (Kaggle mirror); DVV — Nimipalvelu (Finnish name service, per-name lookup); INEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024); the ee-siseministeerium-registry 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).

Other names spelled this way

(inferred from the name graph)

Kawai is also recorded as 7 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname6 spellings in the group

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

    Languages: English, German

    Also written Ka-Wai, Kawaī

  • Portuguese surname12 spellings in the group

    Most recorded in Brazil, United States, Spain, Mexico

    Languages: Portuguese, Spanish

    Also written Ka-Wai, Käwäi, Kawaì, Kawaí, Kawaī

  • a separate name2 spellings in the group

    Also written Ka-Wai

  • Chinese surname2 spellings in the group

    Most recorded in United States, Hong Kong, China, Taiwan

    Also written Ka-Wai

  • Swahili surname3 spellings in the group

    Most recorded in United States, Nigeria, Kenya, Canada

    Also written Kawaï

  • Thai surname27 spellings in the group

    Most recorded in Thailand, Laos

    Languages: Thai, Lao

    Also written กาหวาย, กาไว, กาวีย์, กาไวย์, คาวา

  • Indonesian surname3 spellings in the group

    Most recorded in Indonesia, Malaysia, Philippines, United States

    Languages: Indonesian, Malay

    Also written Kawaī

46 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.

Other recorded senses

(measured from records)

Kawai is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Hawaiian, a male or female given name from Hawaiian

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In mch, tobacco, Nicotiana tabacum

    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)
1850190019502000Kawai Gyokudō, b. 1873Masao Kawai, b. 1924Nobuo Kawai, b. 1932Kenji Kawai, b. 1957Kazumi Kawai, b. 1964Sonoko Kawai, b. 1965Eri Kawai, b. 1965Honami Suzuki, b. 1966Risako Kawai, b. 1994Yukako Kawai, b. 1997

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

Evidence

(measured from records)

27 registers and reference works attest this spelling, across 14 countries.

Official registers attesting Kawai
CountryRegisterYearCountRank
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020238#22,150
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020214#22,150
BR BrazilIBGE — names by decade (Kaggle mirror)2022122—
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—116#35,848
BR BrazilIBGE — names by decade (Kaggle mirror)2020100—
BR BrazilIBGE — names by decade (Kaggle mirror)201058—
BR BrazilBrasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA)—46#30,632
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)201042—
BR BrazilIBGE — Nomes (census name API)—32#53,128
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)200031—
BR BrazilIBGE — names by decade (Kaggle mirror)200027—
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)199026—

Reference works 4

  • Dictionary of American Family Names
  • 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

Where does the name Kawai come from?
variously written, the original meaning is ‘meeting of (two) rivers’. An ancient family by this name is listed in the Shinsen shojiroku. Recorded by Dictionary of American Family Names.
What does the name Kawai mean?
Recorded meaning: variously written, the original meaning is ‘meeting of (two) rivers’.
In which country does Kawai have the most bearers?
Mondonomo estimates about 83 thousand people named Kawai in Japan, more than in any other country we hold, where it is most often spelled kawai.
How common is the name Kawai?
In the United States, the national register counted 769 people named Kawai in 2010, about 1 in 433 thousand residents.
How common is Kawai compared with other names?
In Japan, Kawai is the 350th most common surname of 142,159 surnames recorded there.

What do you want to know about Kawai?

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

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, “Kawai” — the 350th most common surname in Japan. Data snapshot 2026-10-13.

See how Kawai parses inside a full name →