Australia is a country in the Pacific Ocean as well as a member of 8 intergovernmental organizations.
Asia-Pacific Economic Cooperation ( APEC ) is a forum for 21 Pacific Rim member economies that promotes free trade throughout the Asia-Pacific region . Australia ( [ əˈstreɪliə ] , [ ɒ - ] , [ - ljə ] ) , officially the Commonwealth of Australia , is a country comprising the mainland of the Australian continent , the island of Tasmania and numerous smaller islands . Australia is a member of the United Nations , G20 , Commonwealth of Nations , ANZUS , Organisation for Economic Co-operation and Development ( OECD ) , World Trade Organization , Asia-Pacific Economic Cooperation , and the Pacific Islands Forum .