Bastião

given name · Latin script

Meaning: bastion, bulwark

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

Bastião is a given name written in the Latin script, with more bearers in Brazil than in any other country.

rarermore common
  • PTPortugal≈1 in 300K(inferred from the name graph)
  • BRBrazil≈1 in 975K
  • CHSwitzerland1 in 2.1M

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.

Brazil (inferred from the name graph)

≈220 people, est.

Sources
26 (measured from records)

Highest-authority source

≈1 in 300K (inferred from the name graph)

Portugal, est.

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 Bastiao in BR Brazil, US United States, PT Portugal 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)

bastion, bulwark

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested across 13 languages in the etymology graph.

Where in the world(measured from records)

Bastião 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 Bastião is recorded, by country
CountryMost common spellingSources
BR Brazil≈220 est.≈1 in 975K1.5KBastiao23
PT Portugal≈34 est.≈1 in 300K—Bastiao13
US United States≈30 est.≈1 in 11M—Bastiao26
ES Spain101 in 5M10—2
CA Canada≈4 est.≈1 in 8.5M—Bastiao3
CH Switzerland41 in 2.1M4—1

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 — Nomes (census name API); INE — Padrón per-token widgets (current living counts, given + apellidos); BFS — Familiennamen der Wohnbevölkerung (surnames). 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 names spelled this way(inferred from the name graph)

Bastião is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • a separate name2 spellings in the group

    Also written Bastiao

  • French surname2 spellings in the group

    Most recorded in France, United States

    Also written Bastiao

1 further group record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Notable people with this name(measured from records)

The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).

Evidence(measured from records)

Attested in 2 sources across 1 country.

Reference works 1

  • Wikidata name items (native-script + romanized given/family names)

These works list the name; their figures are licensed and are not reproduced here.

Register rows as of the 2026-10-09 data build.

Frequently asked questions

What does the name Bastião mean, and where does it come from?
bastion, bulwark Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
Is Bastião a male or female name?
Bastião 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 Bastião have the most bearers?
Mondonomo estimates about 217 people named Bastião in Brazil, more than in any other country we hold, where it is most often spelled bastiao.
How common is the name Bastião?
In Spain, the national register counted 10 people named Bastião, about 1 in 5.0 million residents.

What do you want to know about Bastião?

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

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/basti%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, “Bastião”. Data snapshot 2026-10-10.

See how Bastião parses inside a full name →