Keiko

given name · Japanese · Latin script

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

Keiko is a given name, most frequently recorded in Japan, where it is the 17th most common given name. It appears chiefly in Japanese and English, written in the Latin script. Recorded meaning: Borrowed from Japanese けいこ (Keiko).

rarermore common
  • JPJapan1 in 744◐
  • USUnited States1 in 72K
  • LALaos1 in 61K

carrying the name, one hue, darker where it is more common. Hover a country for its figure.

≈5.9K ●

across 9 countries

3 ●

recorded for this name

Sources
225 ●

105K records

Official registry-verified

1 in 72K ◐

United States

Spellings & scripts●

KeikoLatin · Japanese●116K records
เคอิโกะThai · Thai●37 records
케이코Hangul · Korean●0 records

Locally spelled Keko in LA Laos.

Spellings marked ● are how people bearing the name write it in our records; ○ marks a model's transliteration. Click a spelling to open its page.

Meaning & origin●

Borrowed from Japanese けいこ (Keiko).

Sources 3

Attested across 2 languages in the etymology graph.

Where in the world●

Sorted by bearers counted by national registers, records where none counts.

Where Keiko is recorded, by country
CountryMost common spellingSources
JP Japan#1797,08186K rec.—listedKeiko156
US United States—4,62717K rec.1 in 72K4.6KKeiko225
BR Brazil—1,066—1 in 199K1.3K——
GB United Kingdom—607562 rec.—listedKeiko39
CA Canada—585564 rec.——Keiko37
TH Thailand—267164 rec.——Keiko35
PE Peru—19689 rec.——Keiko21
PH Philippines—10967 rec.——Keiko15
SG Singapore—108107 rec.——Keiko20
ES Spain—10153 rec.1 in 495K101Keiko22
IT Italy—97101 rec.—1Keiko14
TW Taiwan—9616 rec.——Keiko14

Country figures for a list of names, at full precision, are available under licence rather than by scraping this table. How that works.

Languages●

  • Japanese116K59%
  • English36K18%
  • Portuguese26K13%
  • Spanish8.4K4%
  • German2.1K1%
Show as table
Languages in which the name is recorded
NameRecordsNote
Japanese115,91659%
English35,71018%
Portuguese25,87613%
Spanish8,4494%
German2,1241%

Language is read off each record's context, not declared by the bearer; a share is of all records for this spelling.

Other names spelled this way◐

Keiko is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • Portuguese given name37K records spelled Keiko6 spellings in the group

    Most recorded in Brazil, Peru, United States, Mexico

    Languages: Portuguese, Spanish

    Also written Keïkö, Këïkô, Keikō, Kéíkó

  • a separate given name2.7K records spelled Keiko2 spellings in the group

    Most recorded in United States, United Kingdom, Canada

    Also written Keikō

52 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.

Over time●

0102030401940196019802000202031 · 1995

Show as table
Keiko in SSA — National Baby Names (1880–present), United States, 1922–2025
Yearrecords
19225
19255
192610
192810
192911
193010
19319
19327
19337
19347
19367
19377
19399
19405
194113
19428
194312
19449
19458
19465
19576
19585
19597
19605
19625
19636
19646
19658
19666
196710
19686
19698
19708
197110
197210
197312
197412
19759
197610
19779
197812
197911
198015
198120
198217
198321
198415
198512
198619
198718
198814
198921
199011
199123
199223
199322
199412
199531
199615
199711
199817
199917
200014
200115
200214
200319
200419
200516
200615
200717
200813
200912
201019
201116
201224
201316
201411
201513
201616
201723
201818
201918
202028
202125
202224
202326
202423
202517

US SSA — National Baby Names (1880–present) — 88 years between 1922–2025. One register's own figures, never a sum across registers: two registers counting the same people would double them.

Notable people with this name●

19201940196019802000Keiko Kishi, b. 1932Keiko Awaji, b. 1933Mazie Hirono, b. 1947Keiko Takeshita, b. 1953Keiko Toda, b. 1957Keiko Matsui, b. 1961Keiko Agena, b. 1973Keiko Fujimori, b. 1975Keiko Kitagawa, b. 1986

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●

Attested in 46 sources across 27 countries.

Official registers attesting Keiko
CountryRegisterYearCountRank
US United StatesCensus Bureau — First Name Frequency 2020 by sex20204.6K#4,117
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—1.9K#5,176
BR BrazilIBGE — Nomes (census name API)—1.3K#7,974
BR BrazilBrasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA)—1.2K#3,927
BR BrazilIBGE — names by decade (Kaggle mirror)20221.1K—
BR BrazilIBGE — names by decade (Kaggle mirror)20101K—
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—1K#7,923
BR BrazilIBGE — names by decade (Kaggle mirror)19901K—
BR BrazilIBGE — names by decade (Kaggle mirror)1980979—
BR BrazilIBGE — names by decade (Kaggle mirror)1970927—
BR BrazilIBGE — names by decade (Kaggle mirror)1960818—
BR BrazilIBGE — names by decade (Kaggle mirror)1950470—

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 2026-09-12 data build · 286 rows in the corpus for this spelling.

Frequently asked questions

How common is the name Keiko?
We estimate roughly 5.9 thousand people bear Keiko (counting its spellings and scripts) across 9 countries in our records.
In which country does Keiko have the most bearers?
Keiko is most frequently recorded in Japan, where it is most often spelled keiko.
How common is Keiko compared with other names?
In Japan, Keiko is the 17th most common given name of 355,102 given names recorded there.
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.
What does the name Keiko mean?
Recorded meaning: Borrowed from Japanese けいこ (Keiko).
Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/keiko

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. Bulk access and licensing.

About this data

● measured from records◐ inferred from the name graph○ machine-generated

Data snapshot . Figures are rebuilt periodically and will change.

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 2026-09-12.

See how Keiko parses inside a full name →