Jânio
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
(measured from records)Officially recorded in 1 country
Jânio is a male given name written in the Latin script, most frequently recorded in Brazil.
Spellings & scripts
(measured from records)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.
Attested across 17 languages in the etymology graph.
Where in the world
(measured from records)Jânio counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
| Country | Most common spelling | ||
|---|---|---|---|
| BR Brazil | — | 22K | — |
| US United States | — | 159 | — |
| ES Spain | — | 22 | — |
| PL Poland | — | 17 | — |
| CR Costa Rica | — | 14 | — |
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 — First Name Frequency 2020 by sex; INE — Nombres más frecuentes (Padrón Municipal); dane.gov.pl — PESEL living persons (surnames); TSE — electoral roll (padrón) names. 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).
Notable people with this name
(measured from records)- Jânio Quadrosb. 1917BRBrazilian politician, former president of Brazil (1961)
- Jânio Darrotb. 1955BRBrazilian politician
- Jânio Daniel do Nascimento Santosb. 1991BRBrazilian footballer
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)2 registers and reference works attest this spelling, across 1 country.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- Is Jânio a male or female name?
- Jânio 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 Jânio have the most bearers?
- Jânio is most frequently recorded in Brazil.
What do you want to know about Jânio?
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/j%C3%A2nioThe 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, “Jânio” — ranked 425th in Brazil (IBGE). Data snapshot 2026-10-13.