Names of Japan JP
Ogihara — Japanese given-name survey (OSF) records 紬 as the commonest given name in Japan; the names that most distinguish Japan from the rest of the world are 田中, 斎藤 and 宮崎.
Written in Japanese.
- Population
- 126M
- Official registers
- 1
- Name forms recorded
- 22K
At least one official register, plus a written account of the naming system.
The account of the naming system rests on encyclopaedia and genealogy sources; it has not yet been checked against onomastic literature.
How names work in Japan
Names in Japan follow one naming tradition. Its structure, its given-name and surname stock, how to address someone and what trips software up are set out on its own page.
The most common names in Japan
Where the two lists disagree
12 of Ogihara — Japanese given-name survey (OSF)'s top 12 given names sit five or more places away in our record corpus. Neither ranking is wrong; they count different people.
The register counts one population in one year — everyone it enumerates, once. Our corpus counts records: historical registers going back decades, the diaspora, business and place records, and several generations of births. A name that was common two generations ago outranks a name common today; a name whose spelling scatters across sources (diacritics dropped, transliterated differently) loses ground, because only its dominant spelling is ranked.
Characteristic of Japan
Not the most common names — the most distinctive ones. A name appears here when Japan holds a larger share of its bearers than the world does, weighted by how much of the country's whole name distribution it accounts for.
Over time
Up to five names at a time.
Scripts & spelling
Names in Japan are written in Latin (67%), Han (23%) and Japanese (10%), measured over the spellings our corpus records for this country.
Countries whose names look alike
Measured as the overlap between each country's top 300 given-name forms, weighted by how common each is — the fuzzy-set approach of Lauc (2024), on a truncated inventory.
Registers & sources
Official registers
- Ogihara — Japanese given-name survey (OSF)2024headline (given)
Ogihara et al. (OSF); Meiji Yasuda survey sample. Counts: not recorded. given. 14 forms. 2004–2024.
What we know about this register
Auto-backfilled registry stub (2026-06-05); verify publisher/URL. 1,170 rows, name_types=['given'], evidence=['count']. source note: Meiji Yasuda survey sample; not national birth registry
Last verified 2026-06-05.
Cited works
Behind this page's own account — its one-line answer, its explanation of why the rankings differ, and the notes on its registers. Each naming tradition cites its own sources on its page. Not yet checked against onomastic literature.
- Coto Academyweb
- Japan Federation of Bar Associationsweb
- Japanese honorificsencyclopaedia
- Japanese nameencyclopaedia
- Nippon.comweb
About this data
Official figures are reproduced from the register named beside them, at the year named beside them, and are never combined across registers. The "across all records" ranking counts records in our own corpus — historical registers, the diaspora, business and place records — and is not a population count. Bearer estimates are omitted where a name accounts for more than a quarter of a country's records, because the estimate is not defensible there. Names listed by reference works and licensed name dictionaries are cited as attesting a name; their figures are not published.
Data snapshot: 2026-09-12.
Questions
- What is the most common given name in Japan?
- 凪, according to Ogihara — Japanese given-name survey (OSF) (2024), with 32 bearers recorded among boys.
- Why do sources disagree about the commonest name in Japan?
- Because they count different people. Ogihara — Japanese given-name survey (OSF) (2024) counts one population once, and its commonest given name is 凪. Our corpus counts every record we hold — historical registers, the diaspora, decades of births — and its commonest is Yuki. Both are on this page, each with its denominator.
Cite this page: Mondonomo, “Names of Japan”, https://nelma.mondonomo.ai/names/JP (data snapshot 2026-09-12). Official figures from Ogihara — Japanese given-name survey (OSF).