The Australian School of Pacific Administration was a tertiary institution established by the Australian Government to train administrators and school teachers to work in Papua New Guinea. It was formerly established by the Australian Army as the School of Civil Affairs in 1945. In March 1946, the School became a civil institution and renamed the Australian School of Pacific Administration which was located at Georges Heights, Mosman, NSW, and later to Middle Head. ASOPA operated under the Papua New Guinea Act in 1949 and continued to function as a responsibility of the Minister for External Territories till 1 December 1973 when it became the International Training Institute.