Ngāti Apa is a Māori iwi (tribe) in Rangitikei District of New Zealand. Its rohe (traditional tribal lands) extend between the Mangawhero, Whangaehu, Turakina and Rangitīkei rivers. This area is bounded by Whanganui River in the north-west, and Manawatū River in the south-east. The marae in this district include Tini wai tara, Whangaehu, Kauangaroa, and Parewanui.