John Underwood
John Underwood may refer to:
- John Underwood (actor), English actor
- John Underwood (PR adviser), former Director of Communications for British Labour Party
- John William Henderson Underwood, U.S. Representative from Georgia
- John C. Underwood, American civil engineer, Lieutenant Governor of Kentucky from 1875 to 1879
- John Curtiss Underwood, American lawyer, Abolitionist politician, and federal judge
- John Thomas Underwood, American entrepreneur and investor who founded the Underwood Typewriter Company
- John Underwood (American football), played for the Milwaukee Badgers in the 1920s
- John W. Underwood, American aviation writer, photographer and historian.
- John Underwood (sportswriter), American sportswriter and author