Ieshima (家島町, Ieshima-chō) was a town located in Shikama District, Hyōgo Prefecture, Japan.
It actually is a group of 44 small islands (4 main inhabited ones and 40 smaller uninhabited ones) about 18 kilometers off the coast of Himeji and Akō.
Tangajima and Nishijima have been quarried for at least 400 years and supplied stones used in the building of Osaka Castle.
The eastern part of Nishijima is maintained as a camping and recreation ground by Hyogo Prefecture.
Ieshima is host to the annual Open Water Swim Competition which has been rapidly gaining fame as one of the most popular open water swim competitions in Japan.