| Minamikawa Dam | |
| Name Official: | 南川ダム |
| Dam Crosses: | Naruse River |
| Location: | Taiwa, Miyagi, Japan |
| Dam Type: | Concrete Gravity Dam |
| Dam Length: | 335.0 meters |
| Dam Height: | 46.0 meters |
| Dam Volume: | 244,000 cubic meters |
| Construction Began: | 1975 |
| Opening: | 1987 |
| Owner: | Miyagi Prefecture |
| Res Capacity Total: | 10,000,000 cubic meters |
| Res Catchment: | 22.5 square kilometers |
| Res Surface: | 90.0 hectares |
| Plant Capacity: | 220 KW |
| Location Map: | Japan Miyagi Prefecture#Japan |
| Coordinates: | 38.4339°N 140.8311°W |
) is a concrete gravity arch dam on the Naruse River in the town of Taiwa, Kurokawa District Miyagi Prefecture, Japan, completed in 1987 by Kumagai.[1] The dam supports a 220 KW hydroelectric power station.
Minamikawa Dam is a hollow-core concrete gravity dam intended for flood control, irrigation water and hydroelectric power. The dam is accompanied by a 19.6 meter high saddle dam to increase its water level.