Mount Iwate (岩手山, Iwate-san) is a stratovolcano complex in the Ōu Mountains of western Iwate Prefecture, in the Tōhoku region of northern Honshū, Japan.

[2] The mountain is on the borders of the municipalities of Hachimantai, Takizawa, and Shizukuishi, west of the prefectural capital of Morioka.

Higashi-Iwate was a later (300,000 years ago) parasitic volcano, which now forms the summit of the mountain.

Several somma including Yakushidake, the largest, surround the more recent Higashi Iwate crater rim.

Mount Iwate has largely been quiet since 1732, with a small emission of steam and ash in 1919 and a series of volcanic earthquakes from 1998 to 2003.