Ngāti Whātua o Kaipara

Ngāti Whātua o Kaipara (also known as Ngāti Whātua o Kaipara ki te Tonga) is a Māori iwi (tribe) and hapū (sub-tribe) of New Zealand, which is part of the larger Ngāti Whātua iwi. The iwi's rohe is focused around the southern Kaipara Harbour in the Auckland Region of New Zealand. Ngāti Whātua have been present in the Kaipara Harbour since the arrival of the Māhuhu-ki-te-rangi migratory waka, gradually moving towards the north. By the 17th century, Ngāti Whātua reestablished a presence in the southern Kaipara Harbour.

Ngāti Whātua o Kaipara is a modern name, established in the late 20th century as a part of the Waitangi Tribunal settlement process to differentiate the hapū and whānau of the southern Kaipara Harbour from those living in Northland or the Tāmaki isthmus of central Auckland. Since the signing of the Ngāti Whātua o Kaipara Claims Settlement Act 2013, Ngāti Whātua o Kaipara assets have been administered by two trusts: Nga Maunga Whakahii o Kaipara Development Trust, responsible for the commercial and social development of Ngāti Whātua o Kaipara, and Tari Pupuritaonga Trust, responsible for holding culturally important lands and ensuring that these are never alienated from Ngāti Whātua o Kaipara.

According to the 2018 New Zealand census, an estimated 7,326 people affiliate with Ngāti Whātua o Kaipara.