John boleh bermaksud:
- John Eccles
- John Vane
- John Macleod
- John Abbott
- John Carter (filem)
- John Gurdon
- John E. Sulston
- John F. Kennedy
- John Forbes Nash Jr.
- John Clauser
- John Pople
- John Cornforth
- John Polanyi
- John Bardeen
- John D. Carmack
- John A. Macdonald
- John D. Carmack
- John O'Keefe
- John E. Walker
- John Harsanyi
- John Terry
- John Stones
- John Wayne
- John Kendrew
- John L. Hennessy