| Yanaizu Dam | |
| Location Map: | Japan |
| Coordinates: | 37.5189°N 139.7067°W |
| Country: | Japan |
| Location: | Yanaizu |
| Construction Began: | 1952 |
| Opening: | 1953 |
| Owner: | Tohoku Electric Power |
| Dam Height: | 340NaN0 |
| Dam Length: | 2160NaN0 |
| Dam Volume: | 340000NaN0 |
| Dam Crosses: | Tadami River |
| Spillway Type: | 5 x roller gate |
| Res Capacity Total: | 23938000m2 |
| Res Capacity Active: | 5801000m2 |
| Res Catchment: | 27000NaN0 |
| Res Surface: | 20NaN0 |
| Plant Hydraulic Head: | 250NaN0 |
| Plant Commission: | August 1953 |
| Plant Turbines: | 3 x 25 MW Kaplan-type |
| Plant Capacity: | 75 MW |
Yanaizu Dam is a gravity dam on the Tadami River 20NaN0 upstream of Yanaizu in the Fukushima Prefecture of Japan. It was constructed between December 1952 and August 1953 for the purpose of hydroelectric power generation. It supplies a 75 MW power station with water.[1]