A fictional character in the Sherlock Holmes stories by Sir Arthur Conan Doyle. Along with Sherlock Holmes, Dr. Watson first appeared in the novel A Study in Scarlet (1887).

Watson is Holmes' best friend, assistant and flatmate. He is the first person narrator of all but four of the stories of the cases that he relates. Watson is described as a classic Victorian-era gentleman, unlike the more eccentric Holmes. He is a Doctor; astute and intelligent, although he fails to match his friend's deductive skills. As Holmes' friend and confidant, Watson has appeared in various films, television series, video games, comics and radio programmes.

In a non-canonical story, "The Field Bazaar", Watson is described as having received his Bachelor of Medicine from Doyle's alma mater, Edinburgh University (Scotland), before joining the British forces in India with the 5th Northumberland Fusiliers before being attached to the 66th (Berkshire) Regiment of Foot, saw service in the Second Anglo-Afghan War, was wounded at the Battle of Maiwand, suffered enteric fever and was sent back to England on the troopship HMS Orontes following his recovery. With his health ruined, he was then given a daily pension of 11 shillings and 6 pence for nine months.

Watson is a notable Sept of Clan Buchanan. Learn more about the Names of Buchanan