Mount Iwaki (岩木山, Iwaki-san) is a stratovolcano located in western Aomori Prefecture, Tohoku, Japan.

It was also dubbed "Peak Tilesius" in honor of German naturalist, Wilhelm Gottlieb Tilesius von Tilenau in 1805 by Adam Johann von Krusenstern during the first Russian circumnavigation of the Earth,[8] though this name had dropped out of use among Westerners by 1858 in favor of its native name.

[12] Mount Iwaki is a roughly symmetrical andesitic stratovolcano, rising in relative isolation from the plains at the base of Tsugaru Peninsula.

The easier and more popular route follows Tsugaru Iwaki Skyline, a tolled road, up to a lift.

The skyline road starts from Aomori Prefecture Route 3 on the southwest side of Mount Iwaki.