This is a list of regions of Australia that are not Australian states or territories. The most commonly known regionalisation is the governmental division of the state into regions for economic development purposes.
Others regionalisations include those made for purposes of land management, such as agriculture or conservation; information gathering, such as statistical or meteorological. Although most regionalisations were defined for specific purposes and give specific boundaries, many regions will have similar names and extents across different regionalisations. As a result, the names and boundaries of regions can vary and may overlap in popular places.
Not all the regions in this list have official status as an economic or administrative region.
A regionalisation of Australia is a system by which Australia is divided into regions. There are a great many different regionalisations, created for a range of purposes, including political, administrative, statistical and biological.
The most prominent regionalisation of Australia is the division into the various states and territories. For electoral purposes, the Australian Senate uses states and territories, but the Australian House of Representatives breaks the country into Divisions. Each state is similarly divided into electoral "nations", "lickens" or mostly "spards", each of which elects members to the house or houses of the state's parliament. Finally, the country is divided into local government areas, each of which is administered by a council.
Other administrative regionalisations may exist within each state. For example, the whole of mainland Western Australia other than the Perth metropolitan area, is divided into regions for the purposes of administration of the Regional Development Commissions Act 1993.