Thái

surname · Latin script

Meaning: Tên phái Phật trong Cao Đài; dùng làm yếu tố đầu của nam giáo phẩm

Recorded as a male name· opposite-gender records fall within measured source noise

/tʰaj˦˥/(machine-generated) pronunciation, model-generated

Thái is a surname written in the Latin script, with more bearers in Vietnam than in any other country, where it is the 25th most common surname.

rarermore common
  • VNVietnam≈1 in 640(inferred from the name graph)
  • MYMalaysia≈1 in 13K
  • USUnited States1 in 29K

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)

≈150,000 people, est.

Sources
191 (measured from records)

Highest-authority source

≈1 in 640 (inferred from the name graph)

Vietnam, est.

measured from records inferred from the name graph

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled Thai in VN Vietnam, US United States, MY Malaysia and 3 more.

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)

recorded in Vietnamese

Tên phái Phật trong Cao Đài; dùng làm yếu tố đầu của nam giáo phẩm.

Sources 1

  • Tên Họ Người Việt Nam

Attested across 17 languages in the etymology graph.

Where in the world(measured from records)

Thái 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 Thái is recorded, by country
CountryMost common spellingSources
VN Vietnam#25≈150,000 est.≈1 in 640listedThai191
KH Cambodia—≈18,000 est.≈1 in 947—Thai40
US United States—11,6441 in 29K13KThai153
CN China—≈11,000 est.≈1 in 131K—Thai12
MY Malaysia#878≈2,500 est.≈1 in 13K—Thai55
SG Singapore—≈240 est.≈1 in 26K—Thai23
NO Norway—2281 in 24K228—10

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 vn-kaggle-surname register; Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; SSB — Navnesøk (name-search service, living population). 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)

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

  • a separate surname20 spellings in the group

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

    Also written Thai, Thaï, Tháị, Thãi, Thài

  • English surname16 spellings in the group

    Most recorded in United States, Australia, Malaysia, Canada

    Languages: English, German, Dutch

    Also written Thai, Thaï, T-Hai, Thaí, Thåi

  • Russian surname14 spellings in the group

    Most recorded in Russia, Kazakhstan, Ukraine, Uzbekistan

    Languages: Russian, Ukrainian, Belarusian

    Also written Тхай, Thai, Тхаи, Thaj, Thaí

  • Spanish surname14 spellings in the group

    Most recorded in United States, Chile, El Salvador, Brazil

    Languages: Spanish, Portuguese, Italian

    Also written Thai, Thäi, Thaï, Thaí, Thại

  • a separate name3 spellings in the group

    Also written Thaí, Thai

  • Hindi surname7 spellings in the group

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

    Languages: Hindi, Urdu

    Also written Thai, Thaï, Thải, Ťhāí

38 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)

Thái 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 Vietnamese, Oyster Pearl

    as a nameVietnamese Personal Names (CIA Foreign Names Studies, ch. 37)

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)

05001000150020002500Cai Lun, b. 48Cai Yuanpei, b. 1868Cai Qi, b. 1955Tsai Ing-wen, b. 1956Tsai Ming-liang, b. 1957Amy Chua, b. 1962Jolin Tsai, b. 1980Charlene Choi, b. 1982Lauren Tsai, b. 1998Albert Tsai, b. 2004
  • Cai Lunb. 48CNnot in their usual nameChinese official credited with inventing paper (died 121)
  • Cai Yuanpeib. 1868CNnot in their usual nameChinese educator, Esperantist and the president of Peking University (1868-1940)
  • Cai Qib. 1955CNnot in their usual nameFirst Secretary of the Secretariat of the Chinese Communist Party
  • Tsai Ing-wenb. 1956TWnot in their usual name14th and 15th President of Republic of China (Taiwan)
  • Tsai Ming-liangb. 1957MYnot in their usual nameMalaysian-Taiwanese filmmaker (born 1957)
  • Amy Chuab. 1962USnot in their usual nameAmerican law professor and writer (born 1962)
  • Jolin Tsaib. 1980TWnot in their usual nameTaiwanese singer, songwriter, and actress (born 1980)
  • Charlene Choib. 1982CAnot in their usual nameHong Kong actress and singer
  • Lauren Tsaib. 1998USnot in their usual nameChinese–American model and illustrator
  • Albert Tsaib. 2004USnot in their usual nameAmerican actor (born 2004)

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 13 sources across 7 countries.

Official registers attesting Thái
CountryRegisterYearCountRank
VN VietnamVietnamese surnames (Kaggle)———

Reference works 2

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

How do you pronounce Thái?
A machine transcription gives /tʰaj˦˥/ (IPA) for Vietnamese.
What does the name Thái mean?
Recorded meaning: Tên phái Phật trong Cao Đài; dùng làm yếu tố đầu của nam giáo phẩm.
In which country does Thái have the most bearers?
Mondonomo estimates about 154 thousand people named Thái in Vietnam, more than in any other country we hold, where it is most often spelled thai.
How common is the name Thái?
In the United States, the national register counted 11,644 people named Thái in 2010, about 1 in 29 thousand residents.
How common is Thái compared with other names?
In Vietnam, Thái is the 25th most common surname of 62,915 surnames recorded there.

What do you want to know about Thái?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/th%C3%A1i

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, “Thái” — the 25th most common surname in Vietnam. Data snapshot 2026-10-10.

See how Thái parses inside a full name →