Ikuchijima (生口島) is one of the Geiyo Islands in the Seto Inland Sea, belonging to Hiroshima Prefecture in Japan.

There are bridges connecting Ikuchijima to the mainland (Honshū) via Innoshima and to Shikoku via Ōmishima Island.

The highest peak of this 31.21 km2 island is Mount Kanno at 472.3 m (1,550 ft).

The Wajinden (c. 290) notes that slaves (生口) were kept in the area and the island's name may come from this.

In The Inland Sea, Donald Richie describes the island as “a smaller Sardinia, a greener Corsica”.