John Denison may refer to:
John Denison (MP) (c. 1758–1820), British Member of Parliament for Wootton Bassett 1796–1802, for Colchester 1802–1806, and for Minehead 1807–1812 John Denison (arts administrator) (1911–2006), British music administrator John Denison (engineer) (1916–2001), ice road engineer who operated in the Northwest Territories, Canada John G. Denison, acting CEO and chairman of ATA Airlines and Global Aero Logistics, Inc John A. Denison (1875–1948), American Politician of the Commonwealth of Massachusetts John Evelyn Denison, 1st Viscount Ossington (1800–1873), British statesman John Denison (Royal Navy officer) (1853–1939), Canadian member of the Royal Navy
See also John Dennison (born 1978), New Zealand poet John Dennison, the first elected representative of New Zealand's Opportunities Party John Denniston (disambiguation)