Matahiwi is a farming community 55 kilometres (34 mi) upriver from Whanganui, New Zealand, home to the Māori hapū known as Ngā Poutama of the iwi Te Āti Haunui-a-Pāpārangi.
The Kawana flour mill at Matahiwi was named in honour of Governor George Grey, who had donated the millstones as a personal gift to the Ngā Poutama people.
[3] Matahiwi was a way station for the paddle steamers that were the main transportation up the Whanganui River before the building of the road.
Maranganui Marae and Tuarua meeting house ar affiliated with Ngāti Tuera.
[9] His daughter Te Kehu, noting its similarity to the one they had left behind in Karatia, shed tears (wai) in the presence of her husband (tāne) Nikorima; the wharepuni (sleeping house) is thus known as Tānewai (a name also linked with the founder of Hikurangi).