Dr. Hugh Hudson Hussey, 71, dean emeritus and professor emeritus at the Georgetown University medical school and a retired official of the American Medical Association, died of cancer Nov. 6 at Presbyterian Hospital in Dallas.

Dr. Hussey was born in Washington and earned his undergraduate and medical degrees at Georgetown. He joined the faculty in 1936 and established a practice in internal medicine. He was named chairman of the department of medicine in 1956 and dean of the medical school in 1958.

He held those positions until 1963, when he moved to Chicago as the AMA's director of the division of scientific activities. He had long been active in AMA affairs and was chairman of its board of trustees in 1961. He retired in 1976 and moved to Dallas, where he taught part time at the Southwestern School of Medicine at the University of Texas in Dallas.

In 1961, Dr. Hussey was appointed to the board of regents of the National Library of Medicine by President Kennedy.

He was editor of the Journal of the American Medical Association, medical editor of GP magazine and an associate editor of the Medical Annals of the District of Columbia.

Dr. Hussey was a member of the Georgetown Clinical Society, the Washington and American heart associations, the American College of Physicians and the American Clinical and Climatological Association.

Survivors include his wife, Wilhelmina Catherine Gude Hussey of Dallas; a son, John Christopher of Arlington, Tex., and two grandchildren.