- Source: John Harkness
- John D. Rockefeller
- No Man of Her Own
- Pembunuhan John F. Kennedy
- Wild Rose (film)
- John Gerard
- John Billingsley
- Doctor Who (Seri 1)
- Doctor Who
- Phillips Exeter Academy
- Diiodohidroksikinolin
- John Harkness
- John Harkes
- Harkness Roses
- Rebekah Harkness
- Harkness (surname)
- Agatha Harkness
- John Harkness (cricketer)
- Stephen V. Harkness
- Rosa 'Anne Harkness'
- Deborah Harkness
John Harkness may refer to:
John C. Harkness (1916–2016), American architect
John Harkness (cricketer) (1867–1960), New Zealand cricketer
Jack Harkness (footballer, born 1907) (John Diamond Harkness, 1907–1985), Scottish footballer
John Granville Harkness (1831–1900), British Major-General during the Victorian era
Steve Englehart, comic book writer who used pseudonym John Harkness
John Harkness, a character in You're in the Navy Now
See also
Jack Harkness (disambiguation)