Sir James Reid, 1st Baronet GCVO KCB VD JP (23 October 1849 – 28 June 1923) was a British doctor who served as physician-in-ordinary to three British monarchs: Queen Victoria, King Edward VII and King George V. At the age of 31, Reid was given medical charge of the Royal Household at Balmoral.

[5] As a physician, a Scotsman from Aberdeenshire and able to speak German, Reid fulfilled Queen Victoria's chief criteria for resident medical attendant under the supervision of her then physician-in-ordinary, Sir William Jenner.

[2][5] Following the death of William Marshall, the resident physician to the queen, Reid was appointed to a permanent position and moved to London.

Reid delivered several of the queen's grandchildren, including Charles Edward, the son of Prince Leopold, and Princess Beatrice's children; Alexander Mountbatten, 1st Marquess of Carisbrooke, Victoria Eugenie, Queen of Spain, Lord Leopold Mountbatten and Prince Maurice of Battenberg.

[9] On the question of Karim's background, Reid noted in his diary that John W. Tyler, superintendent at the central jail in Agra, had informed him that he "had constantly seen the Munshi's wife and female relations in India, as they were never shut up there from public gaze, belonging as they do to quite a low class; and that the idea of their being in purdah was never dreamt of until they came to England as ladies".

[6] He attended to the queen at Osborne House, the royal residence on the Isle of Wight, during her final ten days .

[11][12] As the queen's condition deteriorated, her daughters Helena, Louise and Beatrice were in attendance, later joined by their brother Bertie, the Prince of Wales.

Reid diagnosed an acute exacerbation of the chronic bronchitis, but he decided to hide the potential seriousness of this from the royal family and by 25 March, gave him a clean bill of health although the king was permanently wheezing, asthmatic, and could not walk upstairs.

On 9 September an appendectomy was performed on the prince by the Regius Professor of Surgery in Aberdeen Sir John Marnoch, who was surgeon to the Royal Household in Scotland.

Lord Stamfordham wrote in The Times: "Among the remarkable men of the later Victorian group, Sir James Reid stood somehow or other by himself.

[26] In the 2017 film Victoria & Abdul, based on Basu's book, Reid was portrayed by actor Paul Higgins.