Vietnamese Australians (Vietnamese: Người Úc gốc Việt) are Australians of Vietnamese ancestry. Vietnamese Australians are one of the largest groups within the global Vietnamese diaspora. At the 2021 census, 334,781 people stated that they had Vietnamese ancestry (whether alone or in combination with another ancestry), representing 1.3% of the Australian population. In 2021, the Australian Bureau of Statistics estimated that there were 268,170 Australian residents who were born in Vietnam.