Harry F. Bisel, M.D. (1918–1994) was an American oncologist. With Fred Ansfield, Herman Freckman, Arnoldus Goudsmit, Robert Talley, William Wilson, and Jane Wright, was one of the founding members of the American Society of Clinical Oncology (ASCO). This group of pioneering doctors, through the formation of ASCO, is largely credited with the development of modern American clinical oncology. In 1964, Bisel was elected the first president of ASCO. He was active in the American Cancer Society and was a consultant to the National Cancer Institute. Bisel was a founding member of the American Society of Preventive Oncology as well as the American Association for Cancer Education.