Mangaone River may refer to:
- Mangaone River (Hawke's Bay) - a river of the Hawke's Bay Region of New Zealand
- Mangaone River (Manawatu-Wanganui) - a river of the south of New Zealand's North Island
There are also two watercourses named Mangaone Stream in the Taranaki Region. One is a tributary of the Waiwhakaiho River, about 2km long and flowing mostly through an industrial area of New Plymouth.The other is a tributary of the Waitara River, approximately 11km long. 
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- New Zealand 1:50000 Topographic Map Sheet BH 29 - New Plymouth
- New Zealand 1:50000 Topographic Map Sheet BH 30 - Urenui