| Mount Hokkaidō-Komagatake | |
| Other Name: | 北海道駒ヶ岳 |
| Elevation M: | 1131 |
| Map: | Japan Hokkaido |
| Label Position: | right |
| Listing: | List of mountains and hills of Japan by height List of volcanoes in Japan |
| Language: | Japanese |
| Location: | Hokkaidō, Japan |
| Coordinates: | 42.0633°N 140.6772°W |
| Topo: | Geographical Survey Institute 25000:1 駒ヶ岳 50000:1 室蘭 |
| Type: | stratovolcano |
| Age: | Quaternary |
| Volcanic Arc/Belt: | Northeastern Japan Arc |
| Last Eruption: | September to November 2000 |
, also,, or just is a andesitic stratovolcano[1] on the border between Mori, Shikabe, and Nanae, all within the Oshima Subprefecture of Hokkaidō, Japan.
Occurrence of volcanic activity started some 30,000 years ago. Following roughly 5,000 years of dormancy, volcanic activity at Mount Koma-ga-take restarted in 1640,[2] triggering the Kan'ei Great Famine. Since then, there have been at least 50 recorded volcanic events at Mount Koma-ga-take.[3]