Mendeleyeva (Russian: вулка́н Менделе́ева; Japanese: 羅臼山, Rausu-san) is a stratovolcano located in the southern part of Kunashir Island, Kuril Islands, Russia.

A central cone that formed inside the younger caldera was breached to the west by a large debris avalanche about 4200 years ago.

A lava dome that grew inside the avalanche scarp forms the 888 m high point of the volcano.

Four solfatara fields lie at the eastern and northern flanks of the central cone.

Goriachy Pliazh geothermal field is located outside the caldera, along the eastern coast.