Fiò
surname · Latin script
Fiò is a surname written in the Latin script, with more bearers in Brazil than in any other country: 81 people, counted by IBGE.
- HRCroatia1 in 146K(measured from records)
- ARArgentina1 in 784K
- BRBrazil1 in 2.6M
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). 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
- 84 (measured from records)
- 1 in 146K (inferred from the name graph)
81 people
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Croatia
measured from records inferred from the name graph
Spellings & scripts
(measured from records)Locally spelled Fìo in DE Germany.
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
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Cited for this meaning 1
- A Frequency Dictionary of Portuguese
Attested across 8 languages in the etymology graph.
Where the surname Fiò is found
(measured from records)Fiò 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.
81 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: IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); RENAPER — Apellidos (person counts, national); DZS — Imena i prezimena (per-token lookup form); MVČR — living population register 2017. 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
- Which countries have the most people with the surname Fiò?
- In Brazil, the national register counted about 81 people named Fiò, more than in any other country we hold. After it come Argentina, Croatia, Germany and Czechia; the country table on this page ranks them.
- Where is Fiò most common?
- Measured as a share of residents rather than as a count, Fiò is densest in Croatia — about 1 in 146 thousand people — even though Brazil holds more of our records for it.
- How common is the name Fiò?
- In Brazil, the national register counted 81 people named Fiò, about 1 in 2.6 million residents.
What do you want to know about Fiò?
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/fi%C3%B2The 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, “Fiò” — ranked 74062nd in Brazil (IBGE). Data snapshot 2026-10-13.