Jacó

loc · Latin script

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

Jacó is a name written in the Latin script, most frequently recorded in Brazil. Recorded meaning: Jacob (one of the sons of Isaac and Rebecca).

Name dossier (print, CSV)

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

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)

Jacob (one of the sons of Isaac and Rebecca)

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested across 27 languages in the etymology graph.

Where in the world(measured from records)

Jacó counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.

Where Jacó is recorded, by country
CountryMost common spelling
BR Brazil—8.7K—
US United States—2.2K—
NL Netherlands—1.1K—
BE Belgium—39—
FI Finland—31—

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); Census Bureau — Surname Frequency 2020; Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); Familienaam.be — Belgian family-name frequency (population register); DVV — Nimipalvelu (Finnish name service, per-name lookup). 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)

Jacó is also recorded as 3 other names, grouped separately because the records behind them do not connect to the one described above.

  • Portuguese given name15 spellings in the group

    Most recorded in Brazil, South Africa, Netherlands, United States

    Languages: Portuguese, English, Dutch

    Also written Jaco, Jáco, Jacõ

  • French given name3 spellings in the group

    Most recorded in France, South Africa, Netherlands, United States

    Also written Jaco

  • Dutch given name20 spellings in the group

    Most recorded in Netherlands, United States, Germany, United Kingdom

    Languages: Dutch, English, German

    Also written Jacco, Jaco, Jako, 자코

11 further groups 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)

18601880190019201940Jacó Batista Uliano, b. 1873Jacó Guinsburg, b. 1921Jacó Roberto Hilgert, b. 1926Jacó Bittar, b. 1940

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 4 sources across 2 countries.

Official registers attesting Jacó
CountryRegisterYearCountRank
BR BrazilIBGE — Nomes (census name API)—8.7K#2,348

Reference works 2

  • Wikipedia given-name tokens
  • 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 Jacó mean, and where does it come from?
Jacob (one of the sons of Isaac and Rebecca) Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
In which country does Jacó have the most bearers?
Jacó is most frequently recorded in Brazil.

What do you want to know about Jacó?

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/jac%C3%B3

The same 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), and bulk access is licensed separately.

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, “Jacó”. Data snapshot 2026-10-10.

See how Jacó parses inside a full name →