Waikākaho River
| Waikākaho River | |
|---|---|
| Location | |
| Country | New Zealand | 
| Physical characteristics | |
| Mouth | |
 • location  | Wairau River | 
| Length | 14 km (9 mi) | 
The Waikākaho River is a river of the Marlborough Region of New Zealand's South Island. It flows south from its sources southeast of Havelock to reach the Wairau River 5 kilometres (3 mi) west of Tuamarina.
The New Zealand Ministry for Culture and Heritage gives a translation of "waters of the flowering plumes of the toetoe" for Waikākaho.