Tomoko

given name · Japanese · Latin script

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

Tomoko is a given name, most frequently recorded in Japan, where it is the 27th most common given name. It appears chiefly in Japanese and English, written in the Latin script. Recorded meaning: weibl. Vom. japanischer Herkunft (japan.

rarermore common
  • JPJapan1 in 787
  • USUnited States1 in 121K
  • SGSingapore1 in 75K

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

≈3.2K

across 7 countries

4

recorded for this name

Sources
210

93K records

Official registry-verified

1 in 121K

United States

Spellings & scripts

TomokoLatin · Japanese104K records
โทโมโกะThai · Thai19 records
토모코Hangul · Korean3 records
ΤομοκοGreek · Greek0 records

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

weibl. Vom. japanischer Herkunft (japan. tomo »Begleiter« + japan. Jco »Kind«).

Sources 1

  • DUDEN Lexikon der Vornamen

Attested in 1 language in the etymology graph.

Where in the world

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

Where Tomoko is recorded, by country
CountryMost common spellingSources
JP Japan#2791,80480K rec.Tomoko147
US United States2,74911K rec.1 in 121K2.7KTomoko210
GB United Kingdom460407 rec.listedTomoko39
CA Canada418397 rec.Tomoko46
BR Brazil2941 in 720K366
SG Singapore143137 rec.Tomoko17
TH Thailand13697 rec.Tomoko33
TR Türkiye104102 rec.Tomoko8
NL Netherlands7549 rec.listedTomoko26
FI Finland741 rec.64Tomoko2
RU Russia7372 rec.Tomoko13
EG Egypt7169 rec.Tomoko5

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

Languages

  • Japanese104K78%
  • English17K13%
  • Portuguese5.5K4%
  • Spanish1.9K1%
  • French8471%
Show as table
Languages in which the name is recorded
NameRecordsNote
Japanese104,40378%
English17,00913%
Portuguese5,5434%
Spanish1,9101%
French8471%

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

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

  • Portuguese given name8.0K records spelled Tomoko4 spellings in the group

    Most recorded in Brazil, United States, Argentina, Spain

    Languages: Portuguese, Spanish

    Also written Tómoko

  • Chinese given name369 records spelled Tomoko2 spellings in the group

    Most recorded in United States, China, Taiwan, United Kingdom

    Also written Omoko

41 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.

Other recorded senses

Tomoko is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • ‘Friendly child’; ‘wise child’.

    as a nameA concise dictionary of first names

  • Bambina saggia

    as a nameIl grande libro dei nomi per bebè. Significato, origini, curiosità. Oltre 7000 nomi per bambine e bambini Significato,…

Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.

Over time

0102030402000200520102015202036 · 2018

Show as table
Tomoko in SCB — Namnstatistik (to 2023), Sweden, 1999–2020
Yearrecords
199916
200018
200119
200224
200318
200417
200518
200618
200721
200827
200926
201026
201127
201223
201327
201427
201527
201629
201731
201836
201935
202034

SE SCB — Namnstatistik (to 2023)22 years between 1999–2020. One register's own figures, never a sum across registers: two registers counting the same people would double them.

Notable people with this name

1920194019601980Tomoko Naraoka, b. 1929Tomoko Ohta, b. 1933Tomoko Akane, b. 1956Tomoko Ukishima, b. 1963Tomoko Tamura, b. 1965Tomoko Ninomiya, b. 1969Tomoko Kawakami, b. 1970Tomoko Nakajima, b. 1971Tomoko Kaneda, b. 1973

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 29 sources across 18 countries.

Official registers attesting Tomoko
CountryRegisterYearCountRank
US United StatesCensus Bureau — First Name Frequency 2020 by sex20202.7K#5,976
BR BrazilIBGE — Nomes (census name API)366#17,396
BR BrazilBrasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA)365#9,262
BR BrazilIBGE — names by decade (Kaggle mirror)2022294
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)286#19,324
BR BrazilIBGE — names by decade (Kaggle mirror)1960269
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)244#31,253
BR BrazilIBGE — names by decade (Kaggle mirror)1950175
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)1940108
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)195094
BR BrazilIBGE — names by decade (Kaggle mirror)194067
FI FinlandDVV — Nimipalvelu (Finnish name service, per-name lookup)64#7,231

Reference works 3

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

These works list the name; their figures are licensed and are not reproduced here.

Register rows as of the 2026-09-12 data build · 107 rows in the corpus for this spelling.

Frequently asked questions

How common is the name Tomoko?
We estimate roughly 3.2 thousand people bear Tomoko (counting its spellings and scripts) across 7 countries in our records.
In which country does Tomoko have the most bearers?
Tomoko is most frequently recorded in Japan, where it is most often spelled tomoko.
How common is Tomoko compared with other names?
In Japan, Tomoko is the 27th most common given name of 355,102 given names recorded there.
Is Tomoko a male or female name?
Tomoko 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 Tomoko mean?
Recorded meaning: weibl. Vom. japanischer Herkunft (japan.
Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/tomoko

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, “Tomoko” — the 27th most common given name in Japan. Data snapshot 2026-09-12.

See how Tomoko parses inside a full name →