Tahatu Whaitiri
- Born 25 October 1892, Moeraki, Otago, New Zealand
- Died 6 April 1946, Bluff
- Last rank Private
- Service number 19464
- Served In 12th Reinforcements, Māori Contingent
- Next of Kin Teaare Whaitiri (cousin), Chatham Islands
- Pre-war occupation Fisherman, Chatham Island Fishing Co.
- ReligionChurch of England (Anglican)
- Enlisted19 September 1916
- Embarkationaboard HMNZT 73, Opawa, departed 1 February 1917, Wellington, disembarked 27 March 1917, London
- Theatres of operationWestern European 1917
- Periods of service134 days in New Zealand, two years and 274 days overseas. Total service of three years and 43 days
- Returned to New Zealandaboard S.S. Sierra Cordoba, 18 July 1919
- Discharged30 October 1919, on termination of period of engagement
- AwardedBritish War Medal and Victory Medal