Herbert Roback, 62, an official of the Commission on Federal paperwork and former staff director of the House Government Operations Committee, died of cancer Wednesday at George Washington University Hospital.

From 1955 to 1974, first as staff director of a key subcommittee and then as director of the full committee staff, he participated in many major government reorganizations.

These included the creation of the Departments of Housing and Urban Development and Transportation, the Federal Energy Administration and the Energy Research and Development Administration.

Mr. Roback also was involved in legislation establishing the Commission on Government Procurement. He later served as a special assistant to the chairman of the House Committee on the Armed Service.

He came out of retirement in April, 1976, to become director of studies for the Committee on Federal Paperwork.

Born in New York, Mr. Roback earned bachelor's and master's degrees from New York University, where he was elected to Phi Beta Kappa. He also studied at the American University Graduate School of Public Affairs.

During World War II, he served with the Army infantry in Europe. He was captured by the Germans in the invasion of southern France and later escaped. He held the Bronze Star and the Purple Heart.

Mr. Roback worked as an economics and business consultant in Seattle before coming to Washington in 1953 as an aide Rep. Chet Holified (D-Calif.) in his work as a member of the second Hoover Commission. Holifield also served as chairman of the House Government Operations Committee.

A contributor to many professional journals, Mr. Roback received the National Civil Service League Award for Sustained Excellence in 1973.

He was a member of the National Academy of Public Administration and the Cosmos Club.

He is survived by his wife , Arline Roback, of the home in Washington; a sister, Sylvia Alpert, of North Miami Beach, Fla., and a brother, Sidney, of the Bronx, N.Y.

The family suggests that expressions of sympathy be in the form of contributions to the Helbert Roback Memorial Scholarship Fund in care of the union First National Bank