Keiko
given name · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
Keiko is a given name written in the Latin script, with more bearers in Japan than in any other country, where it is the 17th most common given name. Recorded meaning: Borrowed from Japanese けいこ (Keiko).
- JPJapan≈1 in 464(inferred from the name graph)
- USUnited States1 in 71K
- PEPeru≈1 in 34K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- Japan (inferred from the name graph)
- 3 (measured from records)
- Sources
- 242 (measured from records)
- ≈1 in 464 (inferred from the name graph)
≈270,000 people, est.
recorded for this name
Highest-authority source
Japan, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin(measured from records)
Borrowed from Japanese けいこ (Keiko).
Sources 3
- DUDEN Lexikon der Vornamen
- Wiktionary
- Nordic Names
Attested across 2 languages in the etymology graph.
Where in the world(measured from records)
Keiko 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.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| JP Japan | #17 | ≈270,000 est. | ≈1 in 464 | listed | Keiko | 163 |
| CN China | — | ≈16,000 est. | ≈1 in 86K | — | Keiko | 13 |
| US United States | — | 4,672 | 1 in 71K | 4.6K | Keiko | 242 |
| BR Brazil | — | 1,066 | 1 in 199K | 1.3K | — | 1 |
| PE Peru | — | ≈950 est. | ≈1 in 34K | — | Keiko | 21 |
| CA Canada | — | ≈540 est. | ≈1 in 69K | — | Keiko | 42 |
| HK Hong Kong | — | ≈210 est. | ≈1 in 35K | — | Keiko | 18 |
| SG Singapore | — | ≈100 est. | ≈1 in 62K | — | Keiko | 22 |
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: Census Bureau — First Name Frequency 2020 by sex; IBGE — names by decade (Kaggle mirror); IBGE — Nomes (census name API). 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)
- Keiko Kishib. 1932JPactress, writer (1932-2026)
- Keiko Awajib. 1933JPJapanese actor (1933–2014)
- Mazie Hironob. 1947USnot in their usual nameAmerican lawyer and politician (born 1947)
- Keiko Takeshitab. 1953JPJapanese actress
- Keiko Todab. 1957JPJapanese voice actress
- Keiko Matsuib. 1961JPJapanese jazz pianist (1961-)
- Keiko Agenab. 1973USAmerican actress
- Keiko Fujimorib. 1975PE67th President of Peru
- Keiko Kitagawab. 1986JPJapanese actress
- Keiko NiwaJPJapanese screenwriter
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 46 sources across 27 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 4.6K | #4,117 |
| BR Brazil | IBGE — Nomes (census name API) | — | 1.3K | #7,974 |
| BR Brazil | Brasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA) | — | 1.2K | #3,927 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2022 | 1.1K | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2010 | 1K | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 1K | #7,923 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1990 | 1K | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1980 | 979 | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1970 | 927 | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1960 | 818 | — |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 1950 | 470 | — |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 45 | #4,117 |
Reference works 3
- Dictionary of American Family Names
- Wikipedia given-name 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
- What does the name Keiko mean, and where does it come from?
- Borrowed from Japanese けいこ (Keiko). Recorded by DUDEN Lexikon der Vornamen and Wiktionary and 1 other source.
- Is Keiko a male or female name?
- Keiko is a female 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 Keiko have the most bearers?
- Mondonomo estimates about 271 thousand people named Keiko in Japan, more than in any other country we hold, where it is most often spelled keiko.
- How common is the name Keiko?
- In the United States, the national register counted 4,672 people named Keiko in 2020, about 1 in 71 thousand residents.
- How common is Keiko compared with other names?
- In Japan, Keiko is the 17th most common given name of 366,905 given names recorded there.
What do you want to know about Keiko?
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/keikoThe same 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), 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, “Keiko” — the 17th most common given name in Japan. Data snapshot 2026-10-10.