Last name Taiaroa (Taiaroa 
) , globally, is a rare cognomen. The last name Taiaroa is characteristic of New Zealand, where it is quite a rare surname, Australia, where it is a rare surname, and South Africa, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in New Zealand, Australia, and the United States. Very seldom, Taiaroa is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Taiaroa | Australia, South Africa, New Zealand, United States |
| te matenga taiaroa Ngai Tahu leader, NZ (b. 1795) |
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john taiaroa New Zealand rugby union player (1862-1907), NZ (b. 1862) |
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dick taiaroa South African rugby union player, NZ (b. 1866) |
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| tini kerei taiaroa Ngai Tahu; founding mother, community worker, NZ (b. 1846) |
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archie taiaroa New Zealand Māori leader (1937-2010), NZ (b. 1937) |
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| taiaroa royal New Zealand dancer, artistic director and choreographer, NZ |
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| michael taiaroa New Zealand cricketer, NZ (b. 1988) |
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| david taiaroa CA |
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Mr, Jason, Jasen, Helen, Vicky, Zumla, Sharne, Alisha, Rachel, Rodney, Graeme, Lorene, Louise, Jordan, Ngaomi, Fabian, Wiremu, Yvonne, Matewai, Memoree, Michael, Arihana, Leona, Ricki, Ricky, Rakei, Ms, Che, Ben, Liz, Tom, Tia, Kate, Kuia, Pene, Piki, Chevene, Ryan, John, Tane, Nate, Vern, Miles, Alana, Carla, Cathy, Paula, Rangi, Gary, and Barbara