Geiyo Islands

The Geiyo Islands (芸予諸島) are a group of islands in the Seto Inland Sea, under the administration of Hiroshima Prefecture and Ehime Prefecture. Some of the largest islands in the archipelago are connected by the Nishiseto Expressway bridge system connecting Honshu and Shikoku, as well as the Akinada Tobishima Kaido from Kure, Hiroshima.

The Geiyo Archipelago is roughly defined as lying in the western part of Seto Inland Sea, from Hiuchi-nada to Aki-nada. A narrower definition of the archipelago only includes the islands between the former provinces of Iyo and Bizen. The islands in Hiroshima Bay, most notably Etajima and Kurahashi-jima, are therefore excluded from the latter definition.

Economy and industry
Due to the calm yet deep waters of the Seto Inland Sea, the Geiyo Islands are one of the main hubs of shipbuilding, fishing, and aquaculture in Japan.

List of islands
The largest islands in the group, each with an area of more than 20 km2, are: Other notable islands in the group include: The following islands may sometimes be included under the archipelago's broader definition:
 * Hakata
 * Ikuchi-jima
 * Innoshima
 * Mukaishima
 * Ōmishima
 * Ōsakikamijima
 * Ōshima
 * Nii Ōshima
 * Okamura
 * Ōkunoshima
 * Ōsakishimojima
 * Tsushima
 * Uoshima
 * Etajima
 * Itsukushima (Miyajima)
 * Kurahashi-jima
 * Ninoshima