Bui

surname · Latin script

Meaning, in Vietnamese: only

(measured from records)Officially recorded in 24 countries · latest register: SSB PxWebApi, 2025

/buj˧˥/(machine-generated) pronunciation, model-generated

Bui is a surname written in the Latin script, with more bearers in Vietnam than in any other country, where it is the 20th most common surname.

rarermore common
  • VNVietnam≈1 in 122(inferred from the name graph)
  • AUAustralia≈1 in 6.5K
  • USUnited States1 in 12K

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.

Vietnam (inferred from the name graph)

≈810,000 people, est.

2 (measured from records)

recorded for this name

Record sources
394 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

≈1 in 122 (inferred from the name graph)

Vietnam, est.

measured from records inferred from the name graph

Spellings & scripts

(measured from records)
BuiLatin(measured from records)
БуйCyrillic(measured from records)

One other spelling is counted as the same name:

Locally spelled Bùi in VN Vietnam.

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

(measured from records)

only

Cited for this meaning 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested across 18 languages in the etymology graph.

How Bui is read

(measured from records)

Bui is one spelling over 2 language communities, and the dictionaries record it differently in 2 of them. Each row is what a source recorded for that language, beside the share of this name’s records the language holds. No single row is the name’s meaning.

  • Vietnamese70%

    only

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

  • English21%

    Biblical name

    as a namePronouncing Dictionary of Proper Names

The share is ours — how much of this name’s records each language holds. The sense beside it is the source’s, quoted and credited, including where it names a gender. We do not publish a gender of our own per language: our records carry one figure for the spelling as a whole.

Where in the world

(measured from records)

Bui 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 Bui is recorded, by country
CountryMost common spellingSources
VN Vietnam#20≈810,000 est.≈1 in 122103Bùi106
US United States—28,9191 in 12K35KBui394
AO Angola#72≈14,000 est.≈1 in 2.4K—Bui2
GB United Kingdom—≈4,200 est.≈1 in 16K—Bui114
AU Australia#549≈3,900 est.≈1 in 6.5K—Bui176
NO Norway—1,0001 in 5.5K1K—29
FI Finland—6421 in 8.7K642—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: The page provides an analysis of the performance of Vietnamese surname lists in identifying Vietnamese individuals for r; Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; SSB — Navnesøk (name-search service, living population); DVV — Nimipalvelu (Finnish name service, per-name lookup). 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)

Bui is also recorded as 6 other names, grouped separately because the records behind them do not connect to the one described above.

  • a separate surname23 spellings in the group

    Most recorded in United States, United Kingdom, Malaysia, Canada

    Also written Bùi, Bụi, Buì, Bṷi, Ḅui

  • a separate name8 spellings in the group

    Also written Buí, Bừi, Büi, Bùi, Búi

  • French surname9 spellings in the group

    Most recorded in France, Vietnam, United States, Canada

    Languages: French, Vietnamese

    Also written Bụi, Bùi, Búi, Buĭ, Buï

  • Indonesian surname6 spellings in the group

    Most recorded in Indonesia, Malaysia, United States, Singapore

    Languages: Indonesian, Malay

    Also written Bùi, Bụi

  • Swahili surname7 spellings in the group

    Most recorded in United States, Canada, United Kingdom, Malaysia

    Also written Bùi, Bụi, Bùị

  • Norwegian surname18 spellings in the group

    Most recorded in United States, Denmark, Sweden, Norway

    Languages: Norwegian, Danish, Swedish

    Also written Bùi, Búi, Bụi, Buì

59 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)

Bui is also recorded in 4 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Italian, forma plural de Bue

    as a nameDicionário dos sobrenomes italianos

  • In Italian, Variante di Bove

    as a nameDizionario dei cognomi italiani

  • In Dutch, shower, rain

    as a wordA Frequency Dictionary of Dutch

  • In Russian, "storm."

    as a wordA Dictionary of Period Russian Names (Wickenden / Goldschmidt 1996)

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)
1940196019802000Gianni Bui, b. 1940Carlo Bui, b. 1960Fabio Bui, b. 1965Alain Bui, b. 1969Tony Bui, b. 1973Doan Bui, b. 1974Gwenegan Bui, b. 1974Marco Bui, b. 1977Kim Bui, b. 1989

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)

49 registers and reference works attest this spelling, across 24 countries.

Reference works 6

  • Dictionary of American Family Names
  • The Oxford Dictionary of Family Names in Britain and Ireland
  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • Wikipedia surname tokens
  • Wikidata name items (native-script + romanized given/family names)
  • Cognomix.it (Nomix s.r.l.) — Italian surname origin dictionary

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 Bui mean, and where does it come from?
only Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
How do you pronounce Bui?
A machine transcription gives /buj˧˥/ (IPA) for Vietnamese.
In which country does Bui have the most bearers?
Mondonomo estimates about 812 thousand people named Bui in Vietnam, more than in any other country we hold, where it is most often spelled bùi.
How common is the name Bui?
In the United States, the national register counted 28,919 people named Bui in 2010, about 1 in 12 thousand residents.
How common is Bui compared with other names?
In Vietnam, Bui is the 20th most common surname of 62,915 surnames recorded there.

What do you want to know about Bui?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

Please leave out anyone's personal details (see Privacy).

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

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, “Bui” — the 20th most common surname in Vietnam. Data snapshot 2026-10-13.

See how Bui parses inside a full name →