is an island in southern Hiroshima Bay of the Inland Sea, Yamaguchi Prefecture, Japan. Located 26 kilometers southeast of Iwakuni, it is part of the Kutsuna Islands within the Bōyo Islands group. The highest point on the island is Mt. Kinzō. Economic activity on the island consists of fishing and cultivation of vegetables and citrus fruit. Hashirajima is connected to the port at Iwakuni Mondays through Saturdays by a high speed ferry.