John Underwood
John Underwood is the name of the following people:
- John Underwood (actor) († 1624), English actor
- John Cox Underwood (1840–1913), American politician
- John Curtiss Underwood (1809–1873), American politician and judge
- John Thomas Underwood (1857–1937), British entrepreneur
- John WH Underwood (1816–1888), American politician
