| Mangaroa River | |
| Mouth Location: | Hutt River |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Length: | 20km (10miles) |
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.