Grozny Group (also Grozny Volcano) is a complex volcano located in the central part of Iturup Island, Kuril Islands, controlled by Russia, and claimed by Japan. There is an ongoing eruption there.

There are at least two named volcanoes:

• Japanese: 小田萌山 Odamoi yama
• Japanese: 焼山 Yake-yama Russian: Иван Грозный Volcan Ivan Grozny

• List of volcanoes in Russia
• List of volcanoes in Japan

There is not an ongoing eruption there.

• "Grozny Group". Global Volcanism Program. Smithsonian Institution.