| Waihou River | |
| Name Etymology: | Maori meaning "new waters" |
| Pushpin Map: | New Zealand |
| Pushpin Map Size: | 270px |
| Pushpin Map Caption: | Mouth of the Waihou River |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Subdivision Type2: | Region |
| Subdivision Name2: | Northland Region |
| Subdivision Type3: | District |
| Subdivision Name3: | Far North District |
| Length: | 16km (10miles) |
| Source1: | Confluence of the Waipapa River and the Whakanekeneke River |
| Source1 Coordinates: | -35.2922°N 173.6639°W |
| Source1 Elevation: | 5m (16feet) |
| Mouth: | Hokianga Harbour |
| Mouth Coordinates: | -35.355°N 173.5544°W |
| Mouth Elevation: | 0m (00feet) |
| Progression: | Waihou River → Hokianga Harbour |
| River System: | Waihou River |
| Tributaries Left: | Wairere River, Utakura River, Whakanekeneke River |
| Tributaries Right: | Mangamuka River, Orira River, Waipapa River |
The Waihou River is a small river in the Northland Region of New Zealand's North Island. It flows southwest to reach the Hokianga Harbour.[1]