| Kauaeranga River | |
| Source1 Location: | The Pinnacles |
| Mouth Location: | Firth of Thames |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Length: | 31.2km (19.4miles) |
| Source1 Elevation: | 773m (2,536feet) |
| Mouth Elevation: | 0m |
| Basin Size: | 139km2 |
The Kauaeranga River is a river of New Zealand's North Island. One of the main rivers on the Coromandel Peninsula, it rises in the Coromandel Range which forms the backbone of the peninsula, flowing southwest through the Kauaeranga Valley to reach the Firth of Thames at Thames.
Apart from ammoniacal nitrogen, water quality is generally good.[1]