John Dunlop may refer to:
- John Boyd Dunlop (1840–1921), Scottish/Irish inventor of the pneumatic tyre and founder of the Dunlop rubber company
- John Colin Dunlop (c. 1785–1842), Scottish historian
- John Dunlop (racehorse trainer) (born 1939), British horse-racing trainer
- John Thomas Dunlop (1914–2003), American administrator, former US Secretary of Labor
- John Dunlop (American football), American football coach
- John Dunlop (chess player) (1886–?), New Zealand chess champion
- John Dunlop (Unionist politician) (1910–1996), former MP for Mid Ulster
- Rev. Dr. John Dunlop (Presbyterian) (born 1939), Irish Presbyterian minister
- John Dunlop (writer) (1755–1820), Scottish song-writer and writer
- John Dunlop (Scottish politician), British Member of Parliament for Kilmarnock Burghs