Hui Kai Rehu
- Born 14 June 1892, Kaiapoi, Christchurch, New Zealand
- Died 12 May 1929, Auckland
- Last rank Private
- Service number 16/492
- Served In New Zealand Pioneer (Māori) Battalion, A Company, 1st Māori Contingent
- Next of Kin Miss Jennie Rehu (sister), Kaiapoi
- Pre-war occupation Fireman
- ReligionChurch of England (Anglican)
- Enlisted1 February 1915, Wellington
- Embarkationaboard HMNZT 20, Warrimoo, departed 14 February 1915, Wellington, disembarked 26 March 1915, Suez, Egypt
- Theatres of operationGallipoli 1915, Egypt 1915 and Western European 1916-1917
- Periods of service80 days in New Zealand and three years 30 days overseas in Egypt, Gallipoli and Western Europe. Total service of three years and 110 days
- Returned to New Zealandaboard Tahiti, 20 March 1918
- Discharged21 May 1918, no longer physically fit for war service
- Awarded1914-15 Star, British War Medal and Victory Medal
Buried: Waikumete Cemetery, Glen Eden, Auckland.