Australia (also Australia Landing) is a former town located in Bolivar County, Mississippi, United States. Australia was located on the Mississippi River.
Andrew Jackson Donelson, a planter, purchased of land at Australia in 1857.
Australia had a post office from 1858 to 1908.
The population was 38 in 1900.
The "Cessions Towhead Chute", a cutoff constructed on the Mississippi River, left Australia situated on a narrow channel no longer used for navigation.
Nothing remains of the settlement.