Kenneth O. Colgan, 63, a retired maintenance official at Georgetown University Hospital and a former insurance man, died July 21 at the Washington Park. He had emphysema.

Mr. Colgan was born in Minneapolis and grew up in Iowa. He graduated from St. Ambrose College in Davenport, Iowa. After moving here about 1940, he worked for the Government Printing Office.

During World War II, he served in the Army in the Pacific and after the war in China. He won the Bronze Star Medal. He took his discharge in Shanghai and worked for an insurance company there until the Communists victory in 1949.

He then returned to the United States and lived in California briefly before returning here. He worked for Fred Berens Jr. & Company, a Bethesda insurance and real estate firm of which he became an officer. About 1962, he went to work at Georgetown University Hospital, where he was assistant to the chief engineer in the maintenance department. He retired in 1971 for reasons of health.

After that, Mr. Colgan, who lived in Takoma Park, worked for the Cafritz Company as a dispatcher for a year. From the mid-1970s until May, he was part-time property manager for the L. B. Jenkins Real Estate Company.

His marriage to Ruth Colgan ended in divorce.

Survivors include his wife, Grace B., of Takoma Park; one child by his first marriage, Diane Cooke of West Columbia, S.C.; two stepchildren, Linda Fox Turner of Buena Park, Calif., and John Fox of Colorado; his mother, Norma Whitney of Fullerton, Calif.; one half-brother, Jack Whitney of Westminister, Calif.; three grandchildren, and three step-grandchildren.