Cognomen Rahui (Rahui 
) , across the world, is a rare family name. The surname Rahui is habitual in New Zealand, where it is a rare surname, Australia, and Morocco, where it is a very rare surname. Much less frequently, Rahui is the forename as well as the last name.
| rahui te kiri tenetahi 1830–1930 Ngati Wai and Ngati Whatua woman of... (b. 1830) |
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| rahui katene New Zealand politician, NZ (b. 1950) |
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| anaha kepa te rahui Ngati Tarawhai leader, carver, assessor, NZ |
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