Dimitri Dejanikus, 71, who retired from the State Department in 1965 as chief of its general publications division, died April 1 at North Broward Hospital in Pompano Beach, Fla., after a heart attack. He was a resident of Bethesda and was vacationing at the time of his death.

Mr. Dejanikus joined the State Department in 1950 after several years in print and broadcast journalism. He was born in Savannah, Ga., and attended the Georgia Institute of Technology in Atlanta.He then went to New York City in 1932 and worked in the office of an architect for the next four years. but he also had been a part-time correspondent for newspapers in Savannah, Atlanta, and Toronto.

In 1936, he began writing radio mystery programs, a job he held for two years. He was a reporter on the old PM newspaper in New York. During World War II, he was in Washington and wrote a daily radio news show, which was broadcast to Latin America by the State Department.

He joined Time Inc. in 1944, first as a radio news show writer and then as a writer for Time magazine in New York. He returned to Washington in 1949 and worked briefly for the Kiplinger Newsletter before beginning his career at the State Department.

Mr. Dejanikus was member of the National Press Club.

Survivors include his wife, Carolyn S., of the home in Bethesda; three daughters. Tacie of Washington, Mimi, of New York City, and Daphne, of the home; and three sons by a previous marriage, John Morgan, of Columbia, Md., Alec Morgan, of Warren, Mich., and James Morgan, of Savanah. CAPTION: Picture, DIMITRI DEJANIKUS