Whiskeytown Lake is a reservoir in Shasta County in northwestern California, United States, about 8 miles (13 km) west of Redding.

The California Office of Environmental Health Hazard Assessment has issued a safe eating advisory for any fish caught in the Whiskeytown Lake due to elevated levels of mercury.

Fishing opportunities include rainbow and German brown trout; largemouth, smallmouth, and spotted bass; and kokanee salmon.

Sharing the habitat are black bears, mountain lions, blacktail deer, turtles and raccoons, among other wildlife.

Whiskeytown Reservoir is one of several places in northern California to register a temperature of 120 °F or above (some others include Red Bluff and Orland).