Charles Heidelberger (December 23, 1920 – January 18, 1983) was a cancer researcher who developed and patented an anticancer drug called 5-Fluorouracil that remains widely used against cancers of the stomach, colon and breast.
He was also director of basic research at the University of Southern California's Comprehensive Cancer Center.
He received an American Cancer Society National Award in 1974.
Heidelberger served on editorial boards of various scientific journals: Cancer Research, Molecular Pharmacology, Biochemical Pharmacology, the International Journal of Cancer, In Vitro, and the Journal of Medicinal Chemistry.
He served as director for Basic Research of the USC Cancer Center, and was a Distinguished Professor at the University of Southern California.
His former home in Madison, Wisconsin, now known as the Dr.
Charles and Judith Heidelberger House, is listed on the National Register of Historic Places.