Daniel McCoy Braddock, 73, a retired career officer in the Foreign Service, died of cancer Nov. 24 at his home in Rossmoor Leisure World, Silver Spring.

He returned to the Washington area in 1971 after retiring as consul general in Bombay, India, when he completed 42 years in the Foreign Service.

He was the last top U.S. diplomat to leave Cuba in 1961 after this country broke off diplomatic relations with that nation. Mr. Braddock was charge d'affaires there after Fidel Castro took over Cuba in 1959.

Other highlights of his career included assignment in Spain during the Spanish Civil War in the 1930s, five years in Brazil during World War II and later as chief of the division of Brazillan affairs and adviser on American Republics at the State Department in Washington.

In 1963, Mr. Braddock was liaison man with the Latin American missions at the United Nations. Prior to his assignment in Bombay, he had been senior Foreign Service inspector in London, Paris, Moscow, Bonn and South Asian posts.

He was born in Little Rock, Ark. He earned bachelor's and master's degrees from Kenyon College in Gambier, Ohio, and studied at the Ecole Libre des Sciences Politiques in Paris, France.

Mr. Braddock was active in the Inter-Faith Chapel at Leisure World and in Moral Rearmament International.

He is survived by his wife of 50 years, Virginia L. of Leisure World; five children, Daniel M. Jr. of Austin, Tex., John L. of Arlington, Carolyn Palma of Lima, Peru, Edward S. of Newport News, Va., and Richard S. of Savannah, Ga., and eight grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Inter-Faith Chapel, Moral Rearmament, Inc. or DACOR.