Robert Eugene Nash, 65, assistant administrator of the alcohol and drug abuse program at the Government Printing Office for the last year, died Saturday at the Washington Hospital Center after a heart attack. He lived in Alexandria.

Mr. Nash started work here in 1966 as an alcoholic liaison worker for St. Elizabeths Hospital. He developed one of the earlier alcohol treatment facilities in this area at the hospital and was among the first to be classified by the federal government as an alcoholism counselor. He received the government's Superior Service Award in 1972.

He was born in Belfast, Maine. He attended the Higgins Classical Institute in Orno, Maine, and attended the Rutgers School of Alcoholic Studies in New Brunswick, N.J. He participated in the in-service nursing education program at St. Elizabeths Hospital.

A Navy veteran of World War II, when he saw service in the Atlantic, Mr. Nash was a construction worker here before becoming involved as an alcoholic counselor. He was a former member of the board of directors of the Washington Area Council on Alcoholism and Drug Abuse. He served on a committee, headed by former Sen. Harold Hughes, to set up Office of Economic Opportunity guidelines on alcoholism rehabilitation grants. He had been a member of Alcoholics Anonymous for more than 29 years.

His marriage to Virginia Nash ended in divorce.

Survivors include a son, Robert E. Jr., of Bristol, Conn.; a daughter, Mary Ann Nash Shibley of Clinton, Maine; two brothers, George F., of Arlington, and Joseph H., of Harrisburg, Pa., and seven grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Men's Home, 402 E. Hume Ave., Alexandria.