Susanto Tirtoprodjo (3 March 1900 – 16 November 1969) was the acting Prime Minister of the Republic of Indonesia (part of the United States of Indonesia from December 20, 1949 to January 16, 1950.
He was also a member of the Investigating Committee for Preparatory Work for Independence (BPUPK) and served in a number of early Indonesian cabinets.
When searching for more information about this man, please be aware that his name is either Susanto Tirtoprojo or Soesanto Tirtoprodjo, the former being the international spelling and the latter being the Dutch spelling which is still widely used.