Sir Donald Macleod Douglas, MBE, FRCS, FRCSE, FRSE (28 June 1911 – 28 January 1993) was a Scottish academic surgeon.

His schooling and medical undergraduate education were at St Andrews following which he embarked at an early stage on an academic career, winning a scholarship to pursue research at the Mayo Clinic, Minnesota.

As professor of Surgery in St Andrews and Dundee, he developed research interests in wound healing and the design of operating theatres.

[3] After junior hospital appointments in Dundee and London, the award of a Commonwealth Fellowship enabled him to travel to the United States, where from 1937-1939 he was a fellow in surgery at the Mayo Foundation, Rochester, Minnesota.

In that same year he became a Fellow of the Royal College of Surgeons of England and was awarded the degree of Master of Surgery (ChM) by the University of St Andrews.

During this period, he saw service with the Eighth Army in North Africa and tended the injured at the Battle of El Alamein.

[3] After the war, he became senior lecturer at the Royal Postgraduate Medical School and in 1947 was appointed reader in experimental surgery at the University of Edinburgh.

[3] In 1951, he was appointed as the first full-time professor of surgery at the University of St Andrews with clinical responsibilities at Dundee Royal Infirmary.

[5] In 1972, he was created knight bachelor and was awarded the honorary degree of Doctor of Science (DSc) from the University of St Andrews.

[6] He was married with two daughters and two sons, one of whom, Sir Neil Douglas, was president of the Royal College of Physicians of Edinburgh.