John Peacock
John Peacock may refer to:
- Joe Peacock, England international footballer
- John Peacock (piper), player of the Northumbrian smallpipes
- John Peacock (songwriter), English poet and songwriter
- John Peacock (footballer), manager of the England national under-17 football team
- John A. Peacock, Professor of Cosmology at the University of Edinburgh
- John Michael Peacock, England-born frontier leader and politician of the Cape Colony
- John Thomas Peacock, New Zealand politician
- Johnny Peacock, American baseball catcher
- Johnny Peacock (American football), American football player
- Jonnie Peacock, English paralympic sprint runner