Christopher Lake is a popular recreation lake located approximately 40 kilometres north-northwest of Prince Albert, Saskatchewan, within the Rural Municipality of Lakeland No. 521. The lake features a shoreline of 18 kilometres and receives its primary inflow from a diversion channel connected to nearby Emma Lake, with outflow via Christopher Creek. The lake is accessible via Highways 953 and 263.

For paddlers, the lake offers four boat launches, including Murray Point Boat Launch, and two marinas located at Bell's Beach and Slottens Bay. Bell's Beach sits on the southeast corner of the lake, while the community of Clearsand Beach occupies the western shore. The Resort Village of Christopher Lake, situated 2 kilometres southeast of the lake, provides services including gas, a restaurant, a liquor store, a library, and groceries. The northernmost tip of the lake falls within Blue Heron Provincial Park, though no park facilities exist at that specific location; the provincial park office is in the Resort Village.

Fishing is a notable activity on the water, with walleye and northern pike being the primary target species. The fishing season runs from May 15 to March 31, with daily limits of four walleye (only one exceeding 55 cm) and five northern pike (only one over 75 cm). Walleye have been stocked periodically since the 1930s, and smallmouth bass were experimentally introduced around that same period.

On shore, the Christopher Lake Nature Area offers three self-guided hiking trails totalling three kilometres, which connect to broader trail networks. The lake has three public beaches, including Bell's Beach and Christopher Lake Beach. The lake is described as having calm waters, making it suitable for stand-up paddleboarding as well as other paddle craft. Wildlife viewing and birdwatching opportunities exist along the nature trails adjacent to the lake.

The lake takes its name from Christopher Gravel, the brother-in-law of a 19th-century district surveyor who worked in the region.