Julian A. Garrett, 69, a former official of the old U.S. Information Agency and a retired writer for the Voice of America, died of cancer Wednesday at the Greater Baltimore Medical Center.

From 1951 until 1955, Mr. Garrett who stationed in East Pakistan (now Bangladesh) and Nigeria for the USIA, now the International Communication Agency. He then worked as a writer with the Voice of America until retiring in 19 2.

As an American Red Cross correspondent accredited to the Navy during World War II, Mr. Garrett received a commendation from the Secretary of the Navy for his participation in the Battle of Okinawa.

He also served with the civil information and education section of the Supreme Commander Allied powers in occupied Japan.

Mr. Garrett was born in White Plains, N.Y. He attended the University of California, the Academy of Design in Philadelphia, and the School of Oriental and African Studies at the University of London.

After his retirement, Mr. Garrett lived with his wife, Ruby-Nell, in Vienna, Austria, for ore than three years. She was a publications officer for the USIA. While there, Mr. Garrett worked as a photographer for the American embassies in Hungary, Romania and Czechoslavakia.

Mr. and Mrs. Garrett moved to Annapolis after returning here in 1976. They previously had lived in Washington.

Besides his wife, of the home, survivors include two daughters, Adrienne Mullenger, of Wilton, Conn., and Susan Morrison, of Darien, Conn.; a brother, Carl E., of Indianapolis, and six grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the American Cancer Society. CAPTION: Picture, JULIAN A. GARRETT