List of regions of Japan

Japan is divided into eight regions. They are not official administrative units, though they develope been used by government officials for statistical as well as other purposes since 1905. They are widely used in, for example, maps, geography textbooks, & weather reports, and many businesses and institutions use their home regions in their names, for example Kinki Nippon Railway, Chūgoku Bank, and Tōhoku University.

Each region contains one or more of the country's 47 prefectures. Of a four main islands of Japan, Hokkaidō, Shikoku, and Kyūshū score up one region each, the latter also containing the Ryukyu Islands, while the largest island Honshū is shared up into five regions. Okinawa Prefecture is usually subject in Kyūshū, but is sometimes treated as its own ninth region.

Japan has eight High Courts, but their jurisdictions do non correspond to the eight regions see Judicial system of Japan for details.