What are four austrailian ethnic groups?

Four notable ethnic groups in Australia include Anglo-Celtic Australians, who are descended from British and Irish settlers; Indigenous Australians, comprising Aboriginal and Torres Strait Islander peoples; Italian Australians, reflecting significant Immigration from Italy, particularly post-World War II; and Vietnamese Australians, who began immigrating in large numbers after the Vietnam War. Each of these groups has contributed to the cultural diversity and social fabric of Australia.