Janio
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
/ʒaɲu/(machine-generated) pronunciation, model-generated
Janio is a given name written in the Latin script, with more bearers in Brazil than in any other country.
- BRBrazil1 in 11K(measured from records)
- PEPeru≈1 in 96K
- USUnited States1 in 2M
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 (measured from records)
- Sources
- 125 (measured from records)
- 1 in 11K (inferred from the name graph)
19,286 people, 2022
Highest-authority source
Brazil
measured from records inferred from the name graph
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Where in the world(measured from records)
Janio 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.
19,286 people counted by IBGE — names by decade (Kaggle mirror), 2022. 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 — names by decade (Kaggle mirror); IBGE — Nomes (census name API); Census Bureau — First Name Frequency 2020 by sex. 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 de Freitasb. 1932BRBrazilian journalist
- Jânio Natalb. 1953BRBrazilian politician
- Jânio Darrotb. 1955BRBrazilian politician
- Jânio Ardito Leráriob. 1955BRpolitician from Brazil
- Janio Pósitob. 1989PEfootballer
- Jânio Daniel do Nascimento Santosb. 1991BRBrazilian footballer
- Jânio MendesBRBrazilian politician
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).
How to address them(machine-generated)
A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.
Evidence(measured from records)
Attested in 21 sources across 14 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| BR Brazil | IBGE — Nomes (census name API) | — | 22K | #1,328 |
| BR Brazil | Brasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA) | — | 22K | #425 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2022 | 19K | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 19K | #1,091 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2020 | 19K | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2010 | 19K | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2000 | 18K | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1990 | 16K | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1980 | 11K | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1970 | 6.1K | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | 1980 | 5.2K | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | 1960 | 4.9K | — |
Reference works 2
- Wikidata name items (native-script + romanized given/family names)
- Rymut, Słownik nazwisk współcześnie w Polsce używanych (10 vols, IJP PAN, Kraków 1992–1994) — every Polish surname in the PESEL register at the end of 1990, with bearer counts nationally and per voivodeship1990
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
- How do you pronounce Janio?
- A machine transcription gives /ʒaɲu/ (IPA) for Portuguese.
- Is Janio a male or female name?
- Janio 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 Janio have the most bearers?
- In Brazil, the national register counted about 19 thousand people named Janio, more than in any other country we hold, where it is most often spelled janio.
- Where is Janio most common?
- Janio is densest in Brazil, where the national register counts about 1 in 11 thousand people carrying it.
- How common is the name Janio?
- In Brazil, the national register counted 19,286 people named Janio in 2022, about 1 in 11 thousand residents.
What do you want to know about Janio?
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/janioThe 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, “Janio”. Data snapshot 2026-10-10.