| Castle River | |
| Mouth Location: | Rough Stream |
| Subdivision Type1: | Country |
| Length Km: | 6.2 |
| Source1 Elevation: | 680m (2,230feet) |
| Mouth Elevation: | 78m (256feet) |
The Castle River is a river in the southeast of the Wairarapa district of the North Island of New Zealand. It rises on the flanks of the Aorangi Range at the edge of the Aorangi Forest Park and flows eastward, joining Rough Stream 1.6km (01miles) north of that stream's confluence with the Opouawe River.[1]