Tsoi
surname · Latin script
Meaning: A surname from Cantonese
Recorded for both men and women· direction only, no split published
/tsɔɪ/(machine-generated) pronunciation, model-generated
Tsoi is a surname written in the Latin script, with more bearers in China than in any other country.
- HKHong Kong≈1 in 692(inferred from the name graph)
- USUnited States1 in 388K
- GYGuyana1 in 38K
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.
- China (inferred from the name graph)
- 2 (measured from records)
- Sources
- 185 (measured from records)
- ≈1 in 692 (inferred from the name graph)
≈34,000 people, est.
recorded for this name
Highest-authority source
Hong Kong, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
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)
A surname from Cantonese.
Sources 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Attested across 9 languages in the etymology graph.
Where in the world(measured from records)
Tsoi 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 | ||||
|---|---|---|---|---|---|---|
| CN China | — | ≈34,000 est. | ≈1 in 41K | — | Tsoi | 17 |
| HK Hong Kong | #144 | ≈10,000 est. | ≈1 in 692 | — | Tsoi | 81 |
| US United States | — | 857 | 1 in 388K | 973 | Tsoi | 185 |
| CA Canada | — | ≈330 est. | ≈1 in 115K | — | Tsoi | 79 |
| AU Australia | — | ≈240 est. | ≈1 in 107K | — | Tsoi | 72 |
| GY Guyana | — | 20 | 1 in 38K | 20 | — | 1 |
| EE Estonia | — | ≈13 est. | ≈1 in 94K | 16 | Tsoi | 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; Guyana — Official List of Electors July 2025; the ee-stat-nimed 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)
- Cai Lunb. 48CNnot in their usual nameChinese official credited with inventing paper (died 121)
- Choi Hong-hib. 1918KPnot in their usual nameKorean army general and martial artist (1918–2002)
- Choe Ryong-haeb. 1950KPnot in their usual nameChairman of the Presidium of the Supreme People's Assembly of North Korea
- Tsai Ing-wenb. 1956TWnot in their usual name14th and 15th President of Republic of China (Taiwan)
- Choi Min-sikb. 1962KRnot in their usual nameSouth Korean actor
- Viktor Tsoib. 1962RUSoviet rock musician (1962-1990)
- Kenneth Choib. 1971USnot in their usual nameAmerican actor
- Jolin Tsaib. 1980TWnot in their usual nameTaiwanese singer, songwriter, and actress (born 1980)
- Choi Min-hob. 1991KRnot in their usual nameSouth Korean rapper, singer and actor
- 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)
Evidence(measured from records)
Attested in 23 sources across 13 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 973 | #26,423 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 857 | #27,974 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 697 | #31,426 |
| GY Guyana | Guyana — Official List of Electors July 2025 | 2025 | 20 | #605 |
| EE Estonia | Statistics Estonia — per-name Population Register counts (nimed) | — | 16 | #7,113 |
| EE Estonia | Statistics Estonia — per-name Population Register counts (nimed) | — | 9 | #11,532 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 4
- 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)
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 Tsoi mean, and where does it come from?
- A surname from Cantonese. Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
- How do you pronounce Tsoi?
- A machine transcription gives /tsɔɪ/ (IPA) for English.
- In which country does Tsoi have the most bearers?
- Mondonomo estimates about 34 thousand people named Tsoi in China, more than in any other country we hold, where it is most often spelled tsoi.
- How common is the name Tsoi?
- In the United States, the national register counted 857 people named Tsoi in 2010, about 1 in 388 thousand residents.
- How common is Tsoi compared with other names?
- In Hong Kong, Tsoi is the 144th most common surname of 8,142 surnames recorded there.
What do you want to know about Tsoi?
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/tsoiThe 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, “Tsoi” — the 144th most common surname in Hong Kong. Data snapshot 2026-10-10.