Chiaki

given name · Latin script

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

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

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

rarermore common
  • JPJapan≈1 in 1.4K(inferred from the name graph)
  • USUnited States1 in 646K
  • HKHong Kong≈1 in 231K

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)

≈89,000 people, est.

Sources
139 (measured from records)

Highest-authority source

≈1 in 1.4K (inferred from the name graph)

Japan, est.

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.

Attested across 2 languages in the etymology graph.

Where in the world(measured from records)

Chiaki 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 Chiaki is recorded, by country
CountryMost common spellingSources
JP Japan#222≈89,000 est.≈1 in 1.4K—Chiaki137
CN China—≈1,400 est.≈1 in 969K—Chiaki6
US United States—5151 in 646K466Chiaki139
CA Canada—≈61 est.≈1 in 618K—Chiaki17
GB United Kingdom—≈56 est.≈1 in 1.2M—Chiaki17
HK Hong Kong—≈31 est.≈1 in 231K—Chiaki5
SG Singapore—≈22 est.≈1 in 278K—Chiaki7
PY Paraguay—≈13 est.≈1 in 546K—Chiaki4
NO Norway—≈11 est.≈1 in 514K10—4

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; SSB — Navnesøk (name-search service, living population). 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)

Chiaki 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

    Also written ชิอากิ

47 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)

1940196019802000Chiaki Mukai, b. 1952Chiaki Maeda, b. 1967Chiaki Ishikawa, b. 1969Chiaki Takahashi, b. 1977Chiaki Ōsawa, b. 1981Chiaki Kuriyama, b. 1984Chiaki Ito, b. 1987Chiaki Shimogama, b. 1988Chiaki Horan, b. 1988Chiaki Omigawa, b. 1989

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、ChiakiさんHi Chiaki, (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 19 sources across 13 countries.

Official registers attesting Chiaki
CountryRegisterYearCountRank
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020466#20,161
US United StatesCensus Bureau — First Name Frequency 2020 by sex202049#20,161
NO NorwaySSB — Navnesøk (name-search service, living population)—10#24,245
US United StatesSSA — National Baby Names (1880–present)20126—
US United StatesSSA — National Baby Names (1880–present)19906—
US United StatesSSA — National Baby Names (1880–present)19915—
US United StatesSSA — National Baby Names (1880–present)19895—

Reference works 4

  • Dictionary of American Family Names
  • Wikipedia given-name tokens
  • Wikipedia surname 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

How do you pronounce Chiaki?
A machine transcription gives /tʃiɑki/ (IPA) for Japanese.
Is Chiaki a male or female name?
Chiaki 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 Chiaki have the most bearers?
Mondonomo estimates about 89 thousand people named Chiaki in Japan, more than in any other country we hold, where it is most often spelled chiaki.
How common is the name Chiaki?
In the United States, the national register counted 515 people named Chiaki in 2020, about 1 in 646 thousand residents.
How common is Chiaki compared with other names?
In Japan, Chiaki is the 222nd most common given name of 366,905 given names recorded there.

What do you want to know about Chiaki?

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

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, “Chiaki” — the 222nd most common given name in Japan. Data snapshot 2026-10-10.

See how Chiaki parses inside a full name →