Westralia was a common contraction of Western Australia in the 19th and 20th centuries.
Westralia may refer to:
Secessionism in WA Westralia, a name associated with secessionism in Western Australia, as in "Dominion of Westralia", since 1901
Ships , the name of two ships to serve in the Royal Australian Navy , an armed merchant cruiser and later, infantry landing ship, operated during World War II , a replenishment tanker operated between 1989 and 2006 , a passenger liner converted into a troopship and sunk in 1942
See also West Australian Airways, a former airline company Westralian Sands Ltd, a former company, merged into Iluka Resources Westralia Square, an office tower in Perth