| Monbetsu Dam | |
| Location: | Hokkaido Prefecture, Japan |
| Dam Length: | 117m |
| Dam Height: | 20.8m |
| Opening: | 1971 |
| Res Capacity Total: | 256 thousand cubic meters |
| Res Catchment: | 1.5 sq. km |
| Res Surface: | 4 hectares |
| Coordinates: | 42.5469°N 142.2047°W |
| Location Map: | Japan |
Monbetsu Dam is an earthfill dam located in Hokkaido Prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is 1.5 km2. The dam impounds about 4 ha of land when full and can store 256 thousand cubic meters of water. The construction of the dam was completed in 1971.[1]