Seikou

given name · Latin script

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

Seikou is a given name written in the Latin script, with more bearers in Spain than in any other country.

rarermore common
  • ESSpain1 in 1.3M(measured from records)

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.

Spain (measured from records)

38 people

Sources
41 (measured from records)

Highest-authority source

1 in 1.3M (inferred from the name graph)

Spain

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)

Seikou 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 Seikou is recorded, by country
CountryMost common spellingSources
ES Spain381 in 1.3M38Seikou4
FR France———Seikou41
US United States———Seikou6
BE Belgium———Seikou6
SN Senegal———Seikou2

38 people counted by INE — Padrón per-token widgets (current living counts, given + apellidos). 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: INE — Padrón per-token widgets (current living counts, given + apellidos). 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)

1850190019502000Seikō Itō, b. 1884Seikō Tsunashima, b. 1890Seikō Sawada, b. 1894Seikō Ōkawa, b. 1925Seikō Kitazawa, b. 1927Seikō Yoshimi, b. 1929Seikō Shimura, b. 1940Seikō Itō, b. 1961Seikō Senoo, b. 1964Seiko Yamanaka, b. 1989
  • Seikō Itōb. 1884JPnot in their usual nameJapanese waka poet
  • Seikō Tsunashimab. 1890JPnot in their usual nameJapanese politician
  • Seikō Sawadab. 1894JPnot in their usual nameJapanese sculptor
  • Seikō Ōkawab. 1925JPnot in their usual nameJapanese politician (1925-2014)
  • Seikō Kitazawab. 1927JPnot in their usual nameJapanese politician
  • Seikō Yoshimib. 1929JPnot in their usual nameJapanese lawyer (1929-2019)
  • Seikō Shimurab. 1940JPnot in their usual namefilm director and screen writer
  • Seikō Itōb. 1961JPnot in their usual nameJapanese novelist
  • Seikō Senoob. 1964JPnot in their usual nameJapanese actor
  • Seiko Yamanakab. 1989JPnot 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 Seikou
CountryRegisterYearCountRank
ES SpainINE — Padrón per-token widgets (current living counts, given + apellidos)—38#35,064
ES SpainINE — Nombres más frecuentes (Padrón Municipal)—31#19,153

Register rows as of the 2026-10-09 data build.

Frequently asked questions

Is Seikou a male or female name?
Seikou 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 Seikou have the most bearers?
In Spain, the national register counted about 38 people named Seikou, more than in any other country we hold, where it is most often spelled seikou.
Where is Seikou most common?
Seikou is densest in Spain, where the national register counts about 1 in 1.3 million people carrying it.
How common is the name Seikou?
In Spain, the national register counted 38 people named Seikou, about 1 in 1.3 million residents.

What do you want to know about Seikou?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/seikou

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, “Seikou”. Data snapshot 2026-10-10.

See how Seikou parses inside a full name →