Jackson (Jack) Whaitiri
- Born 25 December 1889 or 1890, Chatham Islands, New Zealand
- Died 20 April 1966, Dunedin
- Last rank Private
- Service number 822 375
- Served In Wellington Infantry Regiment, 2nd Battalion, 7th Reinforcements
- Next of Kin Mrs Pauerau (mother), Chatham Islands
- Pre-war occupation Labourer for R. Cameron, Ōtematatā
- ReligionChurch of England (Anglican)
- Enlisted12 June 1915, Otago
- Embarkationaboard HMNZT 34, Warrimoo, departed 9 October 1915, Wellington, disembarked Suez, Egypt
- Theatres of operationEgyptian 1915-1916, Western European 1916-1917-1918
- Periods of service178 days in New Zealand and two years and 219 days overseas. Total service of three years and 31 days.
- Returned to New Zealandaboard Mamara, 6 April 1918
- Discharged12 July 1918, no longer physically fit for war service, on account of injuries sustained on active service
- Awarded1914-15 Star, British War Medal, Victory Medal, War Medal 1939-1945 and New Zealand War Service Medal
Served in WWI and WWII (822375 Lance Corporal).