Robert Roy Korfhage (December 2, 1930 – November 20, 1998) was an American computer scientist, famous for his contributions to information retrieval and several textbooks. He was son of Dr. Roy Korfhage who was a chemist at Nestlé in Fulton, Oswego County, New York. Korfhage earned his bachelor's degree (1952) in engineering mathematics at University of Michigan, while working part-time at United Aircraft and Transport Corporation in East Hartford as programmer. At the same university, he earned a master's degree and Ph.D. (1962) in mathematics,his PhD dissertation being On Systems of Distinct Representatives for Several Collections of Setsadvised by Bernard Galler (1962).