The Mangaroa River is a river of the Wellington Region of New Zealand's North Island. It flows north from the western foothills of the Remutaka Range to the west of Lower Hutt, meeting with the Hutt River on the northern outskirts of Upper Hutt.
"Place name detail: Mangaroa River". New Zealand Gazetteer. New Zealand Geographic Board. Retrieved 12 July 2009.
41°06′S 175°08′E / 41.100°S 175.133°E / -41.100; 175.133