| Mount Nasu | |
| Other Name: | 那須岳 |
| Highest: | Sanbonyari Peak |
| Elevation M: | 1916.9 |
| Range: | Ōu Mountains |
| Listing: | Mountains of Japan |
| Language: | Japanese |
| Location: | On the border of Nasushiohara and Nasu of Tochigi Prefecture, Nishigō, Nishishirakawa of Fukushima Prefecture, Japan |
| Map: | Japan |
| Label: | Mount Nasu |
| Label Position: | right |
| Coordinates: | 37.15°N 196°W |
| Type: | Complex volcano |
| Last Eruption: | November 1963[1] |
| Fetchwikidata: | ALL |
is a group of complex volcanoes located in the northeast part of Nikkō National Park, Japan. The tallest peak is Sanbonyari Peak at a height of 1916.90NaN0. Mount Nasu is one of the 100 Famous Japanese Mountains.
Mount Nasu has the following major peaks:
These peaks are known collectively as .
It is estimated that Mount Nasu started erupting 600 thousand years ago. The eruption started from the north end of the mountain range, at Kashi-Asahi Peak. Only Chausu Peak is active today.