List of regions of Japan
geographic region in Japan
Japan is often divided into regions, each containing one or more of the country's 47 prefectures at large. Sometimes, they are referred to as "blocs" (ブロック, burokku), or "regional blocs" (地域ブロック, chiiki burokku) as opposed to more granular regional divisions. They are not official administrative units, though they have been used by government officials for statistical and other purposes since 1905. They are widely used in, for example, maps, geography textbooks, and weather reports, and many businesses and institutions use their home regions in their names as well, for example Kyushu National Museum, Kinki Nippon Railway, Chūgoku Bank, and Tōhoku University.
One common division groups the prefectures into eight regions. In this arrangement, three of the four main islands of Japan, namely Hokkaidō, Shikoku, and Kyūshū, each form their own region, while the largest island, Honshū, is split into five regions. Minor islands are grouped with the larger ones, for example with the Satsunan Islands being included under Kyūshū and the Tokyo Islands under Kantō. Okinawa Prefecture is usually considered part of Kyūshū, but is sometimes treated as its own ninth region.
Japan has eight High Courts, but their jurisdictions do not match the typical eight-region geographical division (see #Other regional divisions and Judicial system of Japan for details).
Table
Regions and islands
This is a list of Japan's major islands, traditional regions, and subregions, going from northeast to southwest.
This brief starts where responsible research should: with the source description of “List of regions of Japan” as geographic region in Japan. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as geographic region in Japan. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Aug 19, 2026. The linked authority identifier is Q207520. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1905.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “List of regions of Japan”, its source revision and the description used here.
- Expand the search: follow List of regions of Japan primary sources, List of regions of Japan archive and List research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “List of regions of Japan”?
- Which earlier names or jurisdictions may reveal additional records?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “List of regions of Japan” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.