Isamu

given name · Latin script

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

Isamu is a given name written in the Latin script, most frequently recorded in Japan. Recorded meaning: ‘Courageous’; ‘warrior’.

rarermore common
  • JPJapan
  • BRBrazil
  • USUnited States

Where the name is found, darker where our sources hold more of it. No national register counts its bearers anywhere we hold data, so the map carries no figures. One hue, darker where it is more common; hover a country for its figure.

Name dossier (print, CSV)

Meaning & origin(measured from records)

‘Courageous’; ‘warrior’.

Sources 1

  • A concise dictionary of first names

Attested across 2 languages in the etymology graph.

Where in the world(measured from records)

Recorded in:

No national register we accept counts this name’s bearers, so the page lists where it is found and publishes no figure.

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)

1850190019502000Yoshii Isamu, b. 1886Isamu Noguchi, b. 1904Isamu Togawa, b. 1923Isamu Akasaki, b. 1929Isamu Sonoda, b. 1946Isamu Ueda, b. 1958Isamu Imakake, b. 1968Isamu Kamikokuryo, b. 1970Isamu Yūsen, b. 1982Isamu Matsuura, b. 1991

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 21 sources across 14 countries.

Official registers attesting Isamu
CountryRegisterYearCountRank
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—135#50,347
JP JapanJapanese, Chinese, Korean Surnames (Hadamitzky, 1998)———

Reference works 2

  • Dictionary of American Family Names
  • Wikipedia given-name tokens

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 Isamu mean, and where does it come from?
‘Courageous’; ‘warrior’. Recorded by A concise dictionary of first names.
Is Isamu a male or female name?
Isamu 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 Isamu have the most bearers?
Isamu is most frequently recorded in Japan.

What do you want to know about Isamu?

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Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/isamu

The same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use; a free API key gives 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, “Isamu”. Data snapshot 2026-10-10.

See how Isamu parses inside a full name →