Iwao
given name · Latin script
Meaning: ‘Stone man’. J
A male name· listed as male by the registers that count names by sex
(measured from records)Officially recorded in 9 countries
/jwau/(machine-generated) Portuguese · model-generated · uncertain
Iwao is a male given name written in the Latin script, with more bearers in Brazil than in any other country.
- BRBrazil1 in 2.3M(measured from records)
- PLPoland1 in 19M
carrying the name, as counted by each country's national register. Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- Brazil (measured from records)
- Record sources
- 33 (measured from records)
- 1 in 2.3M (inferred from the name graph)
92 people, 2022
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Brazil
measured from records inferred from the name graph
Meaning & origin
(measured from records)‘Stone man’. J
Cited for this meaning 1
- A concise dictionary of first names
Attested across 2 languages in the etymology graph.
Where in the world
(measured from records)Iwao 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.
92 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); Brasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA); SSA — National Baby Names (1880–present); RENAPER — births 1922–2015 (Kaggle mirror); dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); dane.gov.pl — PESEL living persons (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)- Ōyama Iwaob. 1842JPJapanese general (1842-1916)
- Iwao Takamotob. 1925USAmerican animator (1925-2007)
- Iwao Hakamatab. 1936JPJapanese boxer and prisoner
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)17 registers and reference works attest this spelling, across 9 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What does the name Iwao mean, and where does it come from?
- ‘Stone man’. J Recorded by A concise dictionary of first names.
- How do you pronounce Iwao?
- In Portuguese /jwau/. Transcriptions are machine-generated except where a dictionary is named.
- Is Iwao a male or female name?
- Iwao is a male name. National registers that list it by sex list it as male: Brazil (Brasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA)).
- Which countries have the most people named Iwao?
- In Brazil, the national register counted about 92 people named Iwao, more than in any other country we hold, where it is most often spelled iwao. After it come Poland; the country table on this page ranks them.
- Where is Iwao most common?
- Iwao is densest in Brazil, where the national register counts about 1 in 2.3 million people carrying it.
- How common is the name Iwao?
- In Brazil, the national register counted 92 people named Iwao in 2022, about 1 in 2.3 million residents.
What do you want to know about Iwao?
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/iwaoThe 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, “Iwao”. Data snapshot 2026-10-13.