C. Tyler Wood, 83, a former Army colonel and retired State Department official who was a leading force in the Marshall Plan, the economic program that fostered the post-World War II recovery of Europe, died of a heart ailment June 18 at Georgetown University Hospital.

Col. Wood, who lived in Washington, was born in South Africa, where his parents were American missionaries. He graduated from Princeton University in 1921 and later became a partner in a stock brokerage firm in New York City.

In 1942, he moved to Washington to work for the War Production Board. Later in the war, he was commissioned a colonel in the Army and assigned to Army service forces in the the Pentagon. His military decorations included the Distinguished Service Medal.

In 1945, he joined the State Department. He worked on the Marshall Plan as a senior aide to Will Clayton, the assistant secretary for economic affairs. In the 1950s, he was a liaison official between State and Congress and an economic coordinator for the United Nations in South Korea.

From 1956 to 1959, Col. Wood was minister for economic affairs at the U.S. Embassy in New Delhi. From 1959 to 1964, he was director of the U.S. technology mission to India. He then spent six years as special assistant to the administrator of the Agency for International Development. He retired in 1970.

In addition to the Distinguished Service Medal, Col. Wood received the Medal of Freedom, the Woodrow Wilson Award from Princeton University and the Carnegie Hero Medal.

He was a trustee and a member of the finance board of the George C. Marshall Research Foundation at Lexington, Va. He also was a member of the Atlantic Council, the Asia Society, and the Chevy Chase and Army & Navy clubs.

His wife, the former Margaret Flood, died in 1955. Survivors include a son, C. Tyler Jr., of Los Angeles; a daughter, Margaret Wood Rabb of Wolfe City, Tex.; two brothers, Dr. Francis, of Haverford, Pa., and Dr. Richard H., of Princeton, N.J.; six grandchildren, and 10 great-grandchildren.