Iejima , previously romanized in English as Ie Shima, is an island in Okinawa Prefecture, Japan, lying a few kilometers off the Motobu Peninsula on Okinawa Island. The island measures 20 kilometres (12 mi) in circumference and covers 23 square kilometres (8.9 sq mi). As of December 2012 the island had a population of 4,610. Ie Village, which covers the entire island, has a ferry connection with the town of Motobu on Okinawa Island.

The Motobu Peninsula is a peninsula in the Yanbaru region of Okinawa Island. It is surrounded by Nago Bay to the east, the Haneda Inland Sea to the north, and the East China Sea to the west. It is mostly mountainous, with a few plains. The peninsula's northeasternmost point is Cape Bise. Its highest point is Mount Yae, whose summit is 593 metres (1,946 ft). Due to a US military communications tower, the summit is off-limits. The peninsula was the center of power for the kingdom of Hokuzan in medieval times, and was the site of fierce fighting during the Battle of Okinawa in 1945.