is the largest of the Yaeyama Islands and the second largest in Okinawa Prefecture after Okinawa Island itself.
The island has an area of 289.27 km² and a 2005 population of 2347. The island does not have an airstrip, and most visitors—over 390,000 in 2006—arrive from Ishigaki by ferry, a 31.4 km ride to on Iriomote's northeast coast or on the southeast coast. Administratively the island belongs to Taketomi Town, Okinawa Prefecture, Japan. Infrastructure is limited to a single coastal road connecting the hamlets on the northern and eastern shores.