Aizawa

surname · Latin script

Recorded for both men and women· direction only, no split published

/ejzɑwə/(machine-generated) pronunciation, model-generated

Aizawa is a surname written in the Latin script, with more bearers in Brazil than in any other country.

rarermore common
  • BRBrazil1 in 817K(measured from records)
  • USUnited States1 in 2.2M
  • ARArgentina1 in 3.8M

carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.

Brazil (measured from records)

259 people

Sources
35 (measured from records)

Highest-authority source

1 in 817K (inferred from the name graph)

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.

Attested across 2 languages in the etymology graph.

Where in the world(measured from records)

Aizawa 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 Aizawa is recorded, by country
CountryMost common spellingSources
BR Brazil2591 in 817K259Aizawa35
US United States1491 in 2.2M192Aizawa25
AR Argentina121 in 3.8M12Aizawa18
ES Spain101 in 5M10—2
PL Poland41 in 9.6M2——

259 people counted by IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname). 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 — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; RENAPER — Apellidos (person counts, national); INE — Padrón per-token widgets (current living counts, given + apellidos); dane.gov.pl — PESEL living persons (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).

Notable people with this name(measured from records)

192019401960198020002020Hideo Aizawa, b. 1926Masaki Aizawa, b. 1965Haruka Aizawa, b. 1970Mai Aizawa, b. 1980Hitomi Aizawa, b. 1982Emiri Aizawa, b. 1988Rina Aizawa, b. 1991Rin Aizawa, b. 1995Saya Aizawa, b. 1999Peterkwame Aizawa, b. 2001

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)

FormalAizawa様Dear Aizawa-san, (English)
Informalこんにちは、AizawaさんHi Aizawa, (English)

Evidence(measured from records)

Attested in 13 sources across 7 countries.

Reference works 2

  • Wikipedia surname 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

How do you pronounce Aizawa?
A machine transcription gives /ejzɑwə/ (IPA) for Japanese.
In which country does Aizawa have the most bearers?
In Brazil, the national register counted about 259 people named Aizawa, more than in any other country we hold, where it is most often spelled aizawa.
Where is Aizawa most common?
Aizawa is densest in Brazil, where the national register counts about 1 in 817 thousand people carrying it.
How common is the name Aizawa?
In Brazil, the national register counted 259 people named Aizawa, about 1 in 817 thousand residents.

What do you want to know about Aizawa?

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/aizawa

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, “Aizawa”. Data snapshot 2026-10-10.

See how Aizawa parses inside a full name →