David Maclagan MD, FRSE, FRCSEd, FRCPE was a prominent Scottish medical doctor and military surgeon, serving in the Napoleonic Wars. He served as President of both the Royal College of Physicians of Edinburgh and the Royal College of Surgeons of Edinburgh. He was Surgeon in Scotland to Queen Victoria.

Sir Andrew Douglas Maclagan PRSE FRCPE FRCSE FCS FRSSA was a Scottish surgeon, toxicologist and scholar of medical jurisprudence. He served as president of 5 learned societies: the Royal Medical Society (1832), the Royal College of Surgeons of Edinburgh (1859–61), the Royal College of Physicians of Edinburgh (1884–87), the Royal Society of Edinburgh (1890–5), and the Royal Scottish Society of Arts (1900).