Architecture of Australia has generally been consistent with architectural trends in the wider Western world, with some special adaptations to compensate for distinctive Australian climatic and cultural factors. Indigenous Australians produced a wide range of structures and places prior to colonisation. Contemporary Indigenous practitioners are active in a broad range of built environment fields. During Australia's early Western history, it was a collection of British colonies in which architectural styles were strongly influenced by British designs. However, the unique climate of Australia necessitated adaptations, and 20th-century trends reflected the increasing influence of American urban designs and a diversification of the cultural tastes and requirements of an increasingly multicultural Australian society.

Queenslander architecture is a modern term for a type of residential housing, widespread in Queensland, Australia. It is also found in the northern parts of the adjacent state of New South Wales, and shares many traits with architecture in other states of Australia, but is distinct and unique. The form of the typical Queenslander-style residence distinguishes Brisbane's suburbs from other capital cities. The Queenslander is considered Australia's most iconic architectural style.