Cậu
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Cậu is a given name written in the Latin script, with more bearers in Vietnam than in any other country. Recorded meaning: a maternal uncle (mother's brother).
- VNVietnam≈1 in 19K(inferred from the name graph)
- USUnited States1 in 733K
- BRBrazil1 in 2.3M
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)
- Sources
- 67 (measured from records)
- ≈1 in 19K (inferred from the name graph)
≈5,300 people, est.
Highest-authority source
Vietnam, 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 maternal uncle (mother's brother)
Sources 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Attested across 7 languages in the etymology graph.
Where in the world(measured from records)
Cậu 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 | ||||
|---|---|---|---|---|---|---|
| VN Vietnam | #467 | ≈5,300 est. | ≈1 in 19K | — | Cậu | 67 |
| US United States | — | 454 | 1 in 733K | 394 | Cậu | 52 |
| BR Brazil | — | 92 | 1 in 2.3M | 92 | — | — |
| IT Italy | — | ≈2 est. | ≈1 in 35M | listed | — | 3 |
| AR Argentina | — | — | — | 172 | — | — |
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; RENAPER — Apellidos (person counts, national); IBGE — names by decade (Kaggle mirror). 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 recorded senses(measured from records)
Cậu 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, mother's younger brother; uncle
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.
Evidence(measured from records)
No register attests this spelling yet
Frequently asked questions
- What does the name Cậu mean, and where does it come from?
- a maternal uncle (mother's brother) Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
- Is Cậu a male or female name?
- Cậu is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
- In which country does Cậu have the most bearers?
- Mondonomo estimates about 5.3 thousand people named Cậu in Vietnam, more than in any other country we hold, where it is most often spelled cậu.
- How common is the name Cậu?
- In the United States, the national register counted 454 people named Cậu in 2020, about 1 in 733 thousand residents.
- How common is Cậu compared with other names?
- In Vietnam, Cậu is the 467th most common given name of 73,918 given names recorded there.
What do you want to know about Cậu?
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/c%E1%BA%ADuThe same 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), and bulk access is licensed separately.
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, “Cậu” — the 467th most common given name in Vietnam. Data snapshot 2026-10-10.