Otsumata Reservoir
| Reservoir Name | Otsumata |
| Dam Name | Otsumata |
| River | Otsumatagawa |
| Main Basin | Agano |
| Near City | Aizuwakamatsu |
| Administration City | Fukushima |
| Country | Japan |
| Year | 1968 |
| Dam Height | 52 |
| Dam Length | 163 |
| Area(Sqkm) | 0.1 |
| Area(Polygonal) | 0.1 |
| Capital Expenditure | 1.8 |
| Depth(M) | 18 |
| Avg Displacement Of Water | 616 |
| Catchment Area In Sqkm | 19 |
| Main Usage | Hydroelectricity |
| Status | 3: Fair |
| Longitude | 139.299583 |
| Latitude | 37.047917 |
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