| Mokomokonui River | |
| Mouth Location: | Waipunga River |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Length: | 16km (10miles) |
The Mokomokonui River is a river of the northern Hawke's Bay region of New Zealand's North Island. It flows generally southwest from its sources in several streams southwest of Lake Waikaremoana, and flows into the Waipunga River close to the settlement of Tarawera and State Highway 5.