Kousei

given name · Latin script

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

Kousei is a given name written in the Latin script, most frequently recorded in the United States.

rarermore common
  • DEGermany
  • 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.

United States (inferred from the name graph)

no count published

Sources
8 (measured from records)

Reference-verified

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Attested in 1 language in the etymology graph.

Where in the world(measured from records)

Kousei counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.

Where Kousei is recorded, by country
CountryMost common spellingSources
US United States——Kousei8
DE Germany—1Kousei6
AU Australia—1—3

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: the de-duesseldorf-vornamen register; SA BDM — Popular baby names South Australia (1944–present). 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).

Other names spelled this way(inferred from the name graph)

Kousei is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • a separate name2 spellings in the group

    Also written Kóúséí

17 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Notable people with this name(measured from records)

19201940196019802000Kōsei Saitō, b. 1932Kōsei Tomita, b. 1936Kōsei Ono, b. 1939Kōsei Hirota, b. 1951Kosei Kitauchi, b. 1974Kōsei Inoue, b. 1978Kousei Amano, b. 1978Kosei Nakamura, b. 1981Kosei Shibasaki, b. 1984Kosei Tani, b. 2000
  • Kōsei Saitōb. 1932JPnot in their usual nameJapanese film director (1932-2012)
  • Kōsei Tomitab. 1936JPnot in their usual nameJapanese actor, voice actor and narrator (1936-2020)
  • Kōsei Onob. 1939JPnot in their usual nameJapanese translator and film critic
  • Kōsei Hirotab. 1951JPnot in their usual nameJapanese voice actor
  • Kosei Kitauchib. 1974JPnot in their usual nameJapanese association football player
  • Kōsei Inoueb. 1978JPnot in their usual nameJapanese judoka
  • Kousei Amanob. 1978JPJapanese actor
  • Kosei Nakamurab. 1981JPnot in their usual nameJapanese association football player
  • Kosei Shibasakib. 1984JPnot in their usual nameJapanese association football player
  • Kosei Tanib. 2000JPnot in their usual nameJapanese association football player

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 3 sources across 2 countries.

Official registers attesting Kousei
CountryRegisterYearCountRank
AU AustraliaSA BDM — Popular baby names South Australia (1944–present)20091—
DE GermanyStadt Düsseldorf Open Data — Vornamen Neugeborene20131—

Reference works 1

  • Wikipedia surname 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

Is Kousei a male or female name?
Kousei 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 Kousei have the most bearers?
Kousei is most frequently recorded in the United States, where it is most often spelled kousei.

What do you want to know about Kousei?

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/kousei

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, “Kousei”. Data snapshot 2026-10-10.

See how Kousei parses inside a full name →