Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australasian continent, the island of Tasmania, and numerous smaller islands. It is the world's sixth-largest country by total area. It is also the country that Slade Wilson, Joe Wilson, Digger Harkness and the late Billy Wintergreen are from.
- "Tremors" (indirectly mentioned)
- "The Promise" (indirectly mentioned)
- "Suicide Squad" (indirectly mentioned)
- "Deathstroke Returns" (mentioned)