Shà Âdoshima or is an island located in the Inland Sea of Japan. The name means "Island of Small Beans". There are two towns on the island: Tonoshà  and Shà Âdoshima, composing the district of Shà Âzu.
The island is famous as the setting for the novel Twenty-Four Eyes and its subsequent film adaptations and the manga Teasing Master Takagi-san and its adaptations. The island was the first area of Japan to successfully grow olives, and it is sometimes known as "Olive Island".
Shà Âdoshima is part of Kagawa Prefecture and is located north of the prefectural capital Takamatsu. It has an area of and a coastline of . It is the 23rd largest island in Japan, and the second largest in the Seto Inland Sea.
Shà Âdoshima is home to Dofuchi Strait, the world's narrowest strait, meters at its narrowest.
Frequent ferries run to the island from Takamatsu, Himeji, Teshima and Okayama. Ferries run infrequently to Osaka and KÃ Âbe as well.
Shà Âdoshima was once known as Azuki-shima and was part of Kibi (later Bizen) Province, given to Sanuki Province, and finally made part of Kagawa prefecture.
Shà Âdoshima is a popular destination for domestic tourism in Japan. In addition to natural features such as the Dobuchi Strait, the Angel Road, Shà Âdoshima Olive Park and the Kanka Gorge, Shà Âdoshima is famous as the setting for the antiwar novel Twenty-Four Eyes, written by the native author Sakae Tsuboi and later turned twice into a film (1954 and 1987), as well as a television special. The island is the birthplace of two other distinguished writers: Sakae's husband the poet Shigeji Tsuboi and the novelist and short-story writer Denji Kuroshima. All three were prominent participants in the proletarian literary movement, an important and politically radical current within modern Japanese literature.
Shà Âdoshima is also known for its olives, soy sauce, wild monkeys, and beaches. In addition, tourists are attracted to a miniature version of the 88-temple Shikoku Pilgrimage.
The island is also famous for being the first in Japan to successfully cultivate olives. Olive trees proliferate on the island and olive-related merchandise is quite popular with tourists. Milos, Greece, is Shà Âdoshima's sister island.
The island is the setting for the manga Teasing Master Takagi-san and its adaptations. Native creator Sà Âichirà  Yamamoto was raised in Tonoshà  Town.
The island's mascot is Olive Shima-chan (), who is an olive-shaped prince whose task is to find secret spots of the island and to taste test olive oil for quality. He likes white rice. His birthday is on August 15. He is assisted by Mimozanoriku-chan and Rukkarukka.
The Shodoshima Olive Park is the recreation of the fictional () Bakery from the 2014 live-action adaptation of the novel Kiki's Delivery Service. The park was the preserved set of the said film. The park was reported to attracted nearly 300,000 visitors by 2023.