Mount Amagi

 is a range of volcanic mountains in central Izu Peninsula in Shizuoka Prefecture, Japan, forming the border between Izu City and Higashi-Izu Town. It is also referred to as the .
The Amagi mountains have several peaks, the tallest of which are at , at , and at .
There are several hiking routes to the top. Flora in the area include rhododendrons, Japanese andromeda, "stewartia monadelpha" and Siebold's beech.
Many ships of the Imperial Japanese Navy were named after it, including a corvette, a battlecruiser and an aircraft carrier.
Amagi is listed as one of the 100 Famous Japanese Mountains in a book composed in 1964 by mountaineer/author Kyūya Fukada.