| Mount Monbetsu | |
| Other Name: | 紋別岳 |
| Elevation M: | 865.8 |
| Elevation Ref: | [1] |
| Listing: | List of mountains and hills of Japan by height |
| Location: | Hokkaidō, Japan |
| Range: | Nasu Volcanic Zone |
| Coordinates: | 42.7939°N 141.3942°W |
| Topo: | 25000:1 支笏湖温泉, 50000:1 樽前山 |
| Type: | volcanic |
| Age: | Holocene |
| Volcanic Arc: | Northeast Japan Arc |
| Easiest Route: | Hiking |
is a mountain located in Shikotsu-Toya National Park in Hokkaidō, Japan. It sits on the shore of Lake Shikotsu, a caldera lake. It also hosts a radio relay station.[2]
There is a road from Lake Shikotsu shore to the top of the mountain.[3]