Zavaritski Caldera (Russian: Вулкан Заварицкого, Vulkan Zavaritskogo) is a caldera located in the central part of Simushir Island, Kuril Islands, Russia. Lake Biryuzovoe partially fills the youngest of three nested calderas on the volcano.

Zavaritski Caldera
Highest point
Elevation	624 m (2,047 ft)
Coordinates	46°55′30″N 151°57′00″E / 46.925°N 151.95°E / 46.925; 151.95
Geography
Zavaritski Caldera Zavaritski Caldera in Russian Far East
Location	Simushir, Kuril Islands, Russia
Geology
Mountain type	Caldera
Last eruption	November to December 1957

The volcano is named after Alexander Nikolayevich Zavaritski, scientist of the Academy of Sciences of the Soviet Union.