Papua most commonly refers to:New Guinea, the world's second-largest island in the southwest Pacific Ocean Western New Guinea, officially known as Papua since 2002, the Indonesian western half of the island of New Guinea Papua (province), an Indonesian province occupying most of the Western New Guinea Territory of Papua (1884–1949), a British/Australian-administered territory in the southeast of New Guinea Southern Region, Papua New Guinea, officially known as Papua Region as of 2011