Eugene H. (Barney) Barnard, 68, a retired official of the Central Intelligence Agency who was active in church groups, died of cancer and pneumonia Dec. 29 at Georgetown University Hospital.

Mr. Barnard, who was born in Kansas, grew up in Des Moines, Iowa. He earned a bachelor's degree in electrical engineering at Iowa State University. After World War II service in the Navy, he went to work for the Bureau of Aeronautics in the Navy Department. From 1947 to 1950, when he returned here and began his career with the CIA, he worked for an electronics firm in Evansville, Ind.

During his career at the CIA, Mr. Barnard won numerous citations and the Intelligence Medal of Merit for his work in scientific and technical fields. He was a member of the Institute of Electrical and Electronic Engineers.

Mr. Barnard, who lived in Silver Spring, was a member of the parish of St. Bernadette's Catholic Church, where he was active in the Boy Scouts, the Catholic Youth Organization and the Holy Name Society. He also was a member of the St. Vincent de Paul Society and had served as president of the parish chapter of the group.

He enjoyed gardening and had worked on the gardens at St. Bernadette's.

Survivors include his wife, Lucile Mair Barnard of Silver Spring; a daughter, Mary, of Berkeley, Calif; five sons, Joseph, of Columbia, Md., Thomas, of Knoxville, Tenn., John, of Adelphi, Md., William, of Silver Spring, and Robert, of Chevy Chase; a brother, Richard, of Studio City, Calif., and five grandchildren.