| Mount Akanagi | |
| Other Name: | 赤椰岳 |
| Elevation M: | 2798 |
| Range: | Kiso Mountains |
| Location: | Kiso District and Kamiina District, Nagano Prefecture, Japan |
| Map: | Japan |
| Coordinates: | 35.7064°N 137.8156°W |
is a mountain of the Kiso Mountains and located on the border between Okuwa, Kiso District, and Iijima, Kamiina District, Nagano Prefecture, in the Chūbu region of Japan. Its peak is 27980NaN0 high.