Kayoko

given name · Latin script

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

/keɪoʊkoʊ/(machine-generated) pronunciation, model-generated

Kayoko is a given name written in the Latin script, with more bearers in the United States than in any other country.

rarermore common
  • USUnited States1 in 483K(measured from records)
  • ISIceland1 in 175K
  • SESweden1 in 638K

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.

United States (measured from records)

688 people, 2020

Sources
127 (measured from records)

Highest-authority source

1 in 175K (inferred from the name graph)

Iceland

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)

Kayoko 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 Kayoko is recorded, by country
CountryMost common spellingSources
US United States6881 in 483K685Kayoko127
BR Brazil1071 in 2M151——
SE Sweden161 in 638K16—1
PL Poland61 in 6.4M6—1
DK Denmark51 in 1.2M5——
IS Iceland21 in 175K2——

688 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. 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); Brasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA); Skatteverket — Sök hur många som har ett visst namn (living population); dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); dane.gov.pl — PESEL living persons (names); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); Þjóðskrá Íslands — Name frequencies (NafnTíðni, registry). 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)

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

  • Thai given name3 spellings in the group

    Most recorded in Thailand, United States

    Also written คาโยโกะ

39 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)

1940196019802000Kayoko Shiraishi, b. 1941Kayoko Hirano, b. 1948Kayoko Kawahigashi, b. 1958Kayoko Hayashi, b. 1958Kayoko Kishimoto, b. 1960Kayoko Fujii, b. 1961Kayoko Hayashi, b. 1961Kayoko Ōkubo, b. 1971Kayoko Obata, b. 1971Kayoko Shimotsuki, b. 1983

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).

How to address them(machine-generated)

Informalこんにちは、KayokoさんHi Kayoko, (English)

A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.

Evidence(measured from records)

Attested in 16 sources across 9 countries.

Official registers attesting Kayoko
CountryRegisterYearCountRank
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020685#16,403
BR BrazilBrasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA)—151#17,016
BR BrazilIBGE — Nomes (census name API)—123#32,867
BR BrazilIBGE — names by decade (Kaggle mirror)2022107—
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—105#39,365
BR BrazilIBGE — names by decade (Kaggle mirror)195070—
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)194040—
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)195037—
BR BrazilIBGE — names by decade (Kaggle mirror)194030—
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)—16#27,706
SE SwedenSCB — Namnstatistik (to 2023)202013—
SE SwedenSCB — Namnstatistik (to 2023)201913—

Reference works 1

  • 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

How do you pronounce Kayoko?
A machine transcription gives /keɪoʊkoʊ/ (IPA) for Japanese.
Is Kayoko a male or female name?
Kayoko 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 Kayoko have the most bearers?
In the United States, the national register counted about 688 people named Kayoko, more than in any other country we hold, where it is most often spelled kayoko.
Where is Kayoko most common?
Measured as a share of residents rather than as a count, Kayoko is densest in Iceland — about 1 in 175 thousand people — even though United States holds more of our records for it.
How common is the name Kayoko?
In the United States, the national register counted 688 people named Kayoko in 2020, about 1 in 483 thousand residents.

What do you want to know about Kayoko?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

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

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, “Kayoko”. Data snapshot 2026-10-10.

See how Kayoko parses inside a full name →