Tonoshō (土庄町, Tonoshō-chō) is a town and port in Shōzu District, Kagawa, Japan, with a population of 12,915.

[2] First settled around the 8th century,[3] the town center grew into a complex maze of streets during the war-torn Muromachi period (1336–1573) to inhibit enemy forces.

[4] The town was officially incorporated in 1898,[5] and today sesame oil, olives, sōmen noodles, fishing and tourism are important industries.

[6] The town's jurisdiction totals 74.38 km2,[3] covering historic Tonoshō and smaller settlements on western Shōdoshima, as well as Teshima, Odeshima, and other nearby islands.

[8] Per Japanese census data,[9] the population of Tonoshō has roughly halved over the past half-century.