John Underwood

John Underwood may refer to:


 * John Underwood (actor) (fl. 1600–1624), English actor
 * John Underwood (PR adviser), former Director of Communications for British Labour Party
 * John William Henderson Underwood (1816–1888), U.S. Representative from Georgia
 * John C. Underwood (1840–1913), American civil engineer, Lieutenant Governor of Kentucky from 1875 to 1879
 * John Curtiss Underwood (1809–1873), American lawyer, Abolitionist politician, and federal judge
 * John Underwood (American football) (1901–1932), played for the Milwaukee Badgers in the 1920s
 * John W. Underwood, American aviation writer, photographer and historian.