Ngāti Porou is a Māori iwi traditionally located in the East Cape and Gisborne regions of the North Island of New Zealand. Ngāti Porou is affiliated with the 28th Maori Battalion and has the second-largest affiliation of any iwi in New Zealand, with 71,910 registered members in 2006. The traditional rohe or tribal area of Ngāti Porou extends from Pōtikirua and Lottin Point in the north to Te Toka-a-Taiau (a rock that used to sit in the mouth of Gisborne harbour) in the south.