List of countriws in Australia, with their capitals. This list of Oceanic countries and capitals includes territories and republics. An Australia countries and capitals list can be used for reference when planning a trip. Want to learn more about geography? Use this list of countries in Australia to study the features of Oceania and their capitals. Oceanic countries list can also be embedded as a widget on your own site. Click the dropdown menu for more infomration on each item on this list of Australian countries.