Fóis
surname · Latin script
Fóis is a surname written in the Latin script, with more bearers in Brazil than in any other country. Recorded meaning: From a Sardinian nickname related to Latin bōs (“ox”).
- BEBelgium1 in 163K(measured from records)
- UYUruguay1 in 188K
- CHSwitzerland1 in 311K
carrying the name, as counted by each country's national register. Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- Brazil (measured from records)
- Record sources
- 30 (measured from records)
- 1 in 163K (inferred from the name graph)
188 people
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Belgium
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Locally spelled Fois in AR Argentina, BR Brazil, ES Spain and 1 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)From a Sardinian nickname related to Latin bōs (“ox”).
Cited for this meaning 1
Where the surname Fóis is found
(measured from records)Fóis 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.
188 people counted by IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname). 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: RENAPER — Apellidos (person counts, national); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Familienaam.be — Belgian family-name frequency (population register); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); BFS — Familiennamen der Wohnbevölkerung (surnames); INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); DZS — Imena i prezimena (per-token lookup form); stat.si Imena rojstva — full name register (per-token frequency + rank). 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 Fóis mean, and where does it come from?
- From a Sardinian nickname related to Latin bōs (“ox”). Recorded by Wiktionary.
- Which countries have the most people with the surname Fóis?
- In Brazil, the national register counted about 188 people named Fóis, more than in any other country we hold, where it is most often spelled fois. After it come Argentina, Belgium, Spain and Switzerland; the country table on this page ranks them.
- Where is Fóis most common?
- Measured as a share of residents rather than as a count, Fóis is densest in Belgium — about 1 in 163 thousand people — even though Brazil holds more of our records for it.
- How common is the name Fóis?
- In Brazil, the national register counted 188 people named Fóis, about 1 in 1.1 million residents.
What do you want to know about Fóis?
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/f%C3%B3isThe 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, “Fóis”. Data snapshot 2026-10-13.