Dião

surname · Latin script

Recorded as a male name· opposite-gender records fall within measured source noise

Dião is a surname written in the Latin script, with more bearers in Spain than in any other country. Recorded meaning: Origin unknown; found in Xintai, Shandong.

rarermore common
  • ESSpain1 in 49K(measured from records)
  • FIFinland1 in 192K
  • CHSwitzerland1 in 350K

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.

Spain (measured from records)

1,013 people

Sources
14 (measured from records)

Highest-authority source

1 in 49K (inferred from the name graph)

Spain

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled Diao in ES Spain, US United States.

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)

Origin unknown; found in Xintai, Shandong

Sources 2

  • 中国姓氏大辞典 (Chinese Surnames Mega-Dictionary)
  • Schuessler, ABC Etymological Dictionary of Old Chinese (2007)

Where in the world(measured from records)

Dião 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.

Where Dião is recorded, by country
CountryMost common spellingSources
ES Spain1,0131 in 49K1KDiao4
US United States3961 in 840K685Diao11
BR Brazil611 in 3.5M61——
FI Finland291 in 192K29——
CH Switzerland241 in 350K24——
DK Denmark71 in 838K7——

1,013 people counted by INE — Padrón per-token widgets (current living counts, given + apellidos). 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: INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); DVV — Nimipalvelu (Finnish name service, per-name lookup); BFS — Familiennamen der Wohnbevölkerung (surnames); Danmarks Statistik — Hvor mange hedder...? (living-population name counts). 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

None of the official registers or reference works in our corpus lists Dião under this spelling. The statistics on this page rest on person records, and the related names are inferred from the name graph.

Frequently asked questions

What does the name Dião mean, and where does it come from?
Origin unknown; found in Xintai, Shandong Recorded by 中国姓氏大辞典 (Chinese Surnames Mega-Dictionary) and Schuessler, ABC Etymological Dictionary of Old Chinese (2007).
In which country does Dião have the most bearers?
In Spain, the national register counted about 1.0 thousand people named Dião, more than in any other country we hold, where it is most often spelled diao.
Where is Dião most common?
Dião is densest in Spain, where the national register counts about 1 in 49 thousand people carrying it.
How common is the name Dião?
In Spain, the national register counted 1,013 people named Dião, about 1 in 49 thousand residents.

What do you want to know about Dião?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

Please leave out anyone's personal details (see Privacy).

Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/di%C3%A3o

The 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, “Dião”. Data snapshot 2026-10-10.

See how Dião parses inside a full name →