Buton is an island in Indonesia located off the southeast peninsula of Sulawesi. It covers roughly 4,727 square kilometers in area, or about the size of Madura; it is the 129th largest island in the world and Indonesia's 19th largest in area.

Sulawesi, also known as Celebes, is an island in Indonesia. One of the four Greater Sunda Islands, and the world's 11th-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Archipelago. Within Indonesia, only Sumatra, Borneo, and Papua are larger in territory, and only Java and Sumatra are more populous.