Ali Sastroamidjojo, (EYD: Ali Sastroamijoyo; 21 May 1903 – 13 March 1975) was the eighth and tenth Prime Minister of Indonesia and also the Indonesian Permanent Representative to the United Nations (UN) (1957–1960) and the first Indonesian Ambassador to the United States, Ambassador to Canada and the Ambassador to Mexico (1950–1955).
In addition, he was also appointed chairman of the Asian-African Conference in Bandung in 1955 and also was chairman of the Indonesian National Party (PNI) (1960–1966).