| Nakatsu River | |
| Source1 Location: | Kitakami Mountains, Iwate |
| Mouth Coordinates: | 39.6956°N 141.1442°W |
| Mouth Elevation: | 115m (377feet) |
| Pushpin Map: | Japan Iwate Prefecture#Japan |
| Pushpin Map Size: | 270 |
| Pushpin Map Caption: | Location of the mouth in Japan |
| Subdivision Type1: | Country |
| Length: | 34.5km (21.4miles) |
| Basin Size: | 208km2 |
The is a river in Iwate Prefecture, Japan. It flows through the city of Morioka, where it enters the Kitakami River.[1]