The Geiyo Islands (芸予諸島, Geiyo Shotō) 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.

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.

Due to the calm yet deep waters of the Seto Inland Sea, the Geiyo Islands are one of the main hubs of shipbuilding,[1] fishing, and aquaculture in Japan.