Assyrian Australians are ethnic Assyrians or people of Assyrian descent possessing Australian nationality. According to the most recent census, 40,218 persons are Assyrian, while 21,166 identified themselves as having Chaldean ancestry. The majority of Assyrian Australians have immigrated from Iraq, Iran, Syria, Jordan and the Caucasus. The first Assyrians arrived in Australia in the 1950s, to flee from the 1958 revolution in Iraq.