John Granville Harkness, J.P. (29 January 1831 – 22 June 1900) was a major-general in the British Army during the Victorian era.

Harkness entered the army on 13 May 1853 as Ensign in the 55th Regiment, without purchase [3] - on the recommendation of the Duke of Wellington for his grandfather's service.

For heroic conduct, both he and his friend, William Hamilton Richards, were nominated for the Victoria Cross by Major-General Sir Charles Warren.

He fought at Inkerman, the assault on the Quarries, the sortie of 26 October 1854, the siege and the fall of Sevastopol and the Battle of the Great Redan.

Two pencil drawings of the Crimea War by Harkness survive at the National Army Museum[4] In 1862, he was appointed to the 5th Fusiliers[5] and ADC to Sir William Stevenson, the Governor of British Mauritius.