John Harkness (disambiguation)
John Harkness may be:
- John Harkness (1916-), an American architect.
- Jack Harkness (footballer) (born John Diamond Harkness 1907-1985), a Scottish footballer
- John Granville Harkness (1831-1900), a British Major-General during the Victorian era
John Harkness may also refer to:
- Steve Englehart, comic book writer who used pseudonym John Harkness
Fiction:
- John Harkness, character in You're in the Navy Now