| Tauhoa River | |
|---|---|
 Route of the Tauhoa River | |
  Mouth of the Tauhoa River .png)  Tauhoa River (New Zealand) | |
| Location | |
| Country | New Zealand |
| Region | Auckland Region |
| Physical characteristics | |
| Source | |
| • coordinates | 36°20′26″S 174°23′58″E / 36.3405°S 174.3995°E |
| Mouth | Kaipara Harbour |
• coordinates | 36°24′55″S 174°21′45″E / 36.4153°S 174.3625°E |
| Length | 8 km (5.0 mi) |
| Basin features | |
| Progression | Tauhoa River → Kaipara Harbour → Tasman Sea |
| Tributaries | |
| • left | Whanaki River, Opatu River, Papakanui River |
| • right | Opou Creek, Onemanga Creek, Kahutaewao Creek, Hiki Creek, Te Raupa Creek |
The Tauhoa River is an estuarial arm of the Kaipara Harbour in the Auckland Region of New Zealand's North Island. As part of the harbour's drowned valley system, it consists of narrow channels flowing south through expanses of mudflat to meet with the main waters of the Kaipara due east of the harbour entrance. The Tauhoa Channel links the entrance with the river mouth.