Ubau
surname · Latin script
(measured from records)Officially recorded in 3 countries
Ubau is a surname written in the Latin script, with more bearers in Nicaragua than in any other country.
- NINicaragua≈1 in 17Kfew records(inferred from the name graph)
- CRCosta Rica1 in 26K
- ESSpain1 in 1.1M
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.
- Nicaragua (inferred from the name graph)
- Record sources
- 40 (measured from records)
- ≈1 in 17K (inferred from the name graph)
≈400 people, est.
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Nicaragua, est.
measured from records inferred from the name graph
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Attested in 1 language in the etymology graph.
Where in the world
(measured from records)Ubau 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 | ||||
|---|---|---|---|---|---|---|
| NI Nicaragua | #611 | ≈400 est. | ≈1 in 17K | — | Ubau | 20 |
| CR Costa Rica | #579 | 198 | 1 in 26K | 198 | Ubau | 9 |
| US United States | — | ≈60 est. | ≈1 in 5.7M | listed | Ubau | 40 |
| ES Spain | — | 46 | 1 in 1.1M | 46 | Ubau | 27 |
| CO Colombia | — | ≈41 est. | ≈1 in 1.3M | — | Ubau | 2 |
| SV El Salvador | — | ≈19 est. | ≈1 in 333K | — | Ubau | 6 |
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: TSE — electoral roll (padrón) names; the us-wru-surnames-voterfile register; INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal). 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)Ubau 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 Luxembourgish, cultivation, growing
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
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)4 registers and reference works attest this spelling, across 3 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| CR Costa Rica | TSE — electoral roll (padrón) names | — | 198 | #1,004 |
| ES Spain | INE — Apellidos más frecuentes (Padrón Municipal) | — | 46 | #47,034 |
| ES Spain | INE — Padrón per-token widgets (current living counts, given + apellidos) | — | 46 | #46,978 |
| US United States | wru Name Dictionary — US surnames, voter-file supplement (Khanna et al.) | — | — | — |
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- In which country does Ubau have the most bearers?
- Mondonomo estimates about 400 people named Ubau in Nicaragua, more than in any other country we hold, where it is most often spelled ubau.
- How common is the name Ubau?
- In Costa Rica, the national register counted 198 people named Ubau, about 1 in 26 thousand residents.
- How common is Ubau compared with other names?
- In Nicaragua, Ubau is the 611th most common surname of 5,756 surnames recorded there.
What do you want to know about Ubau?
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/ubauThe 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, “Ubau” — the 611th most common surname in Nicaragua. Data snapshot 2026-10-13.