Yellapragada Subbarao (Telugu: యెల్లప్రగడ సుబ్బారావు) (January 12, 1895-August 9, 1948) was an Indian scientist who made important contributions to the treatment of cancer. Most of his career was spent in the United States. Subbarao remained an alien without a green card all his life, though he would lead some of America's most important medical research during World War II