Thầy
surname · Latin script
Meaning: a male teacher
Recorded as a male name· opposite-gender records fall within measured source noise
Thầy is a surname written in the Latin script, with more bearers in the United States than in any other country.
- USUnited States1 in 800K(measured from records)
- BRBrazil1 in 1.4M
- CRCosta Rica1 in 1.7M
carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Sources
- 17 (measured from records)
- 1 in 800K (inferred from the name graph)
416 people, 2020
Highest-authority source
United States
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Thay in US United States, MY Malaysia, IN India.
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 male teacher
Sources 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Attested across 13 languages in the etymology graph.
Where in the world(measured from records)
Thầy 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 | |||
|---|---|---|---|---|---|
| US United States | 416 | 1 in 800K | 312 | Thay | 17 |
| BR Brazil | 155 | 1 in 1.4M | 155 | — | — |
| CR Costa Rica | 3 | 1 in 1.7M | 3 | — | — |
| MY Malaysia | — | — | — | Thay | 7 |
| IN India | — | — | — | Thay | 2 |
416 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. 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 — First Name Frequency 2020 by sex; Census Bureau — Surname Frequency 2020; IBGE — names by decade (Kaggle mirror); TSE — electoral roll (padrón) names. 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).
Evidence(measured from records)
No register attests this spelling yet
Frequently asked questions
- What does the name Thầy mean, and where does it come from?
- a male teacher Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
- In which country does Thầy have the most bearers?
- In the United States, the national register counted about 416 people named Thầy, more than in any other country we hold, where it is most often spelled thay.
- Where is Thầy most common?
- Thầy is densest in the United States, where the national register counts about 1 in 800 thousand people carrying it.
- How common is the name Thầy?
- In the United States, the national register counted 416 people named Thầy in 2020, about 1 in 800 thousand residents.
What do you want to know about Thầy?
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/th%E1%BA%A7yThe 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, “Thầy”. Data snapshot 2026-10-10.