| Mouth Location: | Ūawa River |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Subdivision Type2: | Region |
| Subdivision Name2: | Gisborne District |
| Length: | 140NaN0 |
| Progression: | Kaimonona Stream → Mangatokerau River → Ūawa River |
| River System: | Ūawa River |
The Mangatokerau River is a river of the Gisborne Region of New Zealand's North Island. It flows generally southeast to meet the Uawa River, which it joins 7km (04miles) from the latter's Tolaga Bay mouth.