The Ngo Dinh Diem presidential visit to Australia from 2 to 9 September 1957 was an official visit by the first president of the Republic of Vietnam. It was part of a year of travelling for Diem, who made official visits to the United States and other anti-communist countries. As with his American trip, Diem was warmly and lavishly received during the height of the Cold War, garnering bipartisan praise from both the Liberal Party of Australia of Prime Minister Robert Menzies and the opposition Australian Labor Party (ALP).