The Surgeon of Crowthorne: A Tale of Murder, Madness and the Love of Words is a non-fiction history book by British writer Simon Winchester, first published in England in 1998. It was retitled The Professor and the Madman: A Tale of Murder, Insanity, and the Making of the Oxford English Dictionary in the United States and Canada.

Broadmoor Hospital is a high-security psychiatric hospital in Crowthorne, Berkshire, England. It is the oldest of England's three high-security psychiatric hospitals, the other two being Ashworth Hospital near Liverpool and Rampton Secure Hospital in Nottinghamshire. The hospital's catchment area consists of four National Health Service regions: London, Eastern, South East and South West. It is managed by the West London NHS Trust.