| Whirinaki River | |
| Subdivision Type1: | Country |
| Length: | 16km (10miles) |
| Source1: | Ngapukehaua |
| Source1 Coordinates: | -35.5088°N 173.5511°W |
| Mouth Coordinates: | -35.4192°N 173.439°W |
| Tributaries Left: | Falls Creek, Okopako Stream, Wheoki Stream |
| Tributaries Right: | Karuhiruhi Stream |
The Whirinaki River is a river of the Northland Region of New Zealand's North Island. It flows northwest from the Waima Forest through the settlement of Whirinaki to the Hokianga Harbour.