Mount Rausu (羅臼岳, Rausu-dake) is a stratovolcano on the Shiretoko Peninsula in Hokkaidō, Japan.

It sits on the border between the towns of Shari and Rausu.

Mount Rausu is the northeasternmost Holocene volcano on Hokkaidō.

Mount Rausu's opening festival is held annually on July 3.

This day officially opens the climbing season.