Oetarjo Anwar Tjokroaminoto (3 May 1909 – 16 November 1975) was an Indonesian politician and journalist. He served as Minister of Social Affairs for a year in the Wilopo Cabinet, and was the Prime Minister of Pasundan for less than a month during January 1950. Tjokroaminoto then rejoined the government as a legislator, and by 1952 he obtained a cabinet post as Minister of Social Affairs in the Wilopo Cabinet where he was reshuffled after a year. PSII later fractured in 1972, and Tjokroaminoto became a leader in one of the two competing factions until his death in 1975.