Retired Army Col. Arent O. Wiken, 67, a civilian management analyst with the Defense Intelligence Agency, died Sunday at Arlington Hospital after a heart attack.

His last assignment before retiring from military duty in 1965 was that of director of the field studies program at the Industrial College of the Armed Forces here.

He had conducted management and organization studes at DIA since 1966.

Born in Wisconsin, Col. Wiken was a graduate of Ripon College and later earned a master's degree in chemistry from George Washington University.

He was called to active duty in the Army in 1941, and served on the faculty of the Army Chemical Corps School at Edgewood Arsenal, Md., until 1944, when he was sent to the Pacific for two years as a chemical officer.

During the Korean conflict Col. Wiken saw service in Korea and Japan as deputy chemical officer of the U.S. Army Forces, Far East. He received the Bronze Star.

From 1957 to 1961, he was in the office of the Army's assistant chief chemical officer for planning an do trine at the Pentagon. He then joined the faculty of the Industrial College of the Armed Forces. He was awarded the Legion of Merit for his services.

He is survived by his wife, Ruth H., and a son, Arent H., both of the home in Arlington, and three sisters, Adelaide Brown, of Lincoln, Neb., and Thelma Raun and Louella Knapp, both of Denison, Iowa.