Retired Marine Corps Col. Sydney H. (Tom) Batchelder Jr., 47, a veteran of Vietnam who was decorated for meritorious service during the evacuation of Cambodia, died of cancer Monday at the Bethesda Medical Center.

He had lived in Vienna, Va., for the past two years after coming here to his last assignment with the installation and logistics branch at Marine Corps headquarters in Washington. He retired in April, 1976.

Born in Langdon, N.H., Col. Batchelder was a graduate of Dartmouth College. He entered the Marine Corps in 1952.

In addition to several tours of duty at headquarters here, he served with the Third Marine Division at Okinawa, the Second Marine Division at Camp LeJeune, N.C., and Marine Barracks in Philadephia.

He was a graduate of the Naval War College at Newport, R.I., and the Marine Corps Command and Staff College at Quantico. An infantry officer, he was considered an authority on combat logistics and motor transportation.

Col. Batchelder served in Vietnam in 1966-67. Later, as commanding officer of the Service Battalion of the Third Marine Division, he assisted in the evacuation of Americans and other foreign personnel located in Cambodia. He was one of the last Americans to leave that country.

He held the Legion of Merit and the National Armed Service Award of the Veterans of Foreign Wars for his service during that evacuation.He also received the Bronze Star.

He is survived by his wife, Patricia Cook Batchelder, and a daughter, Polly Louise Batchelder, both of the home; his parents, Mr. and Mrs. Sydney H. Batchelder, of Langdon, and a sister, Lorraine Lawrence, of Claremont, N.H.

The family suggests that expressions of sympathy may be in the form of contributions to the American Cancer Society.