Karluk Lake, is a lake on Kodiak Island in Alaska, United States.[3] It has no nearby settlements, being located in wilderness. Its outflow is the Karluk River.
Karluk Lake has a maximum depth of 457 feet (139 m).[5] To the west, Karluk Lake is bordered by mountains that divide it from neighboring Frazer Lake. To the east, the bay is bounded by the adjacent Thumb Lake, and mountains dividing it from Uyak Bay. In the south, the lake receives the O'Malley River from the adjacent O'Malley Lake. The Karluk River exits the north end of Karluk Lake, draining it into the Shelikof Strait in the Gulf of Alaska.