Dr. Adrian J. Delaney, 70, an eye, ear, nose and throat specialist, died Thursday in Circle Terrace Hospital after a stroke.

He had maintained offices in Alexandria since 1954, when he retired with the rank of captain from the U.S. Navy.

A Navy surgeion since 1931. Dr. Delaney was chief of the otolaryngology service of the Bethesda Naval Hospital from 1948 to 1954. He was a pioneer in the development of the surgical treatment of otosclerosis and published a number of papers on the subject.

Born in Brooklyn, N.Y., Dr. Delaney was a graduate of Columbia University. He earned a degree from Georgetown University's school of medicine in 1931.

After entering private practice in Alexandria, he became associated with Alexandria Hospital, where he was chief of staff in 1958, and with Circle Terrace Hospital, where he was chief of staff in 1962.

Dr. Delaney was president of the Alexandria Medical Society in 1974. He was a fellow of the American College of Surgeons and a diplomate of the American Board of Ophthalmolgoy and Otolaryngology.

He was a member of the American Medical Association, the Medical Society of Virginia, the American Academy of Ophthalmology and Otolaryngology and the Association of Military Surgeons.

He belonged to St. Mary's Catholic Parish, the Knights of Columbus and the Belle Haven Country Club.

His is survived by his wife, Laura Sullivan Delaney, of the home in Alexandria; a daughter, Ann Souders, of Annandale; two sons, Dr. Adrian J. Jr., of Pertsmouth, Va., and John B., of Fairfax; two brothers, Bernard C., of New YOrk, and Charles, of Rockville, 12 grandchildren and three great-grandchildren.

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