William (Bill) Te Koeti Bannister
- Born 9 August 1888, Bruce Bay, Westland, South Island, New Zealand
- Died 5 July 1966, Mahitahi
- Last rank Corporal
- Service number 46870
- Served In New Zealand Rifle Brigade, 25th Reinforcements, J Company, 26th Infantry
- Next of Kin Mrs E. Bannister (wife), Bruce Bay, South Westland
- Pre-war occupation Bridge Carpenter
- ReligionChurch of England (Anglican)
- Enlisted26 December 1916, Hokitika
- Embarkationaboard HMNZT 8384 Turakina, departed 26 April 1917, Wellington, disembarked Plymouth, England, 19 July 1917
- Theatres of operationWestern Front 1917
- Periods of service178 days in New Zealand and 285 days overseas in France. Total service of one year and 98 days
- Returned to New Zealandaboard H.S. Maheno, 24 December 1917
- Discharged13 May 1918, due to no longer being physically fit for war service on account of wounds received in action
- AwardedBritish War Medal and Victory Medal
Served in WWI and WWII (Home Guard). *Also known as William Koeti Bannister and William Paitoto Bannister.