The Kamchatka Peninsula is a 1,250-kilometre-long (780 mi) peninsula in the Russian Far East, with an area of about 270,000 km2 (100,000 sq mi). It lies between the Pacific Ocean to the east and the Sea of Okhotsk to the west. Immediately offshore along the Pacific coast of the peninsula runs the 10,500-metre (34,400 ft) deep Kuril–Kamchatka Trench.
The Kamchatka Peninsula, the Commander Islands, and Karaginsky Island constitute the Kamchatka Krai of the Russian Federation. The vast majority of the 322,079 inhabitants are Russians, but there are also about 13,000 Koryaks (2014). More than half of the population lives in Petropavlovsk-Kamchatsky (179,526 people in 2010) and nearby Yelizovo (38,980).
The Kamchatka peninsula contains the volcanoes of Kamchatka, a UNESCO World Heritage Site.