The Australian Institute of Architects, officially the Royal Australian Institute of Architects, is Australia's professional body for architects. Its members use the post-nominals FRAIA (Fellow) and RAIA. The Institute supports 14,000 members across Australia, including 550 Australian members who are based in architectural roles across 40 countries outside Australia. SONA is the national student-membership body of the Australian Institute of Architects. EmAGN represents architectural professionals within 15 years of graduation, as part of the Australian Institute of Architects.

George Allen Mansfield was a prominent Australian architect of the nineteenth century who designed many iconic buildings in Sydney, New South Wales, Australia.