| Mount Numanohara | |
| Other Name: | 沼ノ原山 |
| Elevation M: | 1505.6 |
| Listing: | List of mountains and hills of Japan by height |
| Location: | Hokkaidō, Japan |
| Range: | Central Ishikari Mountains |
| Coordinates: | 43.5192°N 142.9586°W |
| Topo: | Geographical Survey Institute 25000:1 五色ヶ原 50000:1 旭岳 |
| Map: | Japan#Japan Hokkaido |
| Type: | Volcanic |
| Age: | Early Pleistocene |
| Volcanic Arc/Belt: | Kurile Arc |
is part of the Ishikari Mountains, Hokkaidō, Japan.