Carpenter Lake, officially Carpenter Lake Reservoir, is the largest of the three reservoirs of the Bridge River Power Project, which is located in the mountains west of Lillooet, British Columbia.

The lake is about 185 kilometres north of the province's major city of Vancouver and is formed by the 1951 diversion of the Bridge River by Terzaghi Dam into Seton Lake via a tunnel through Mission Mountain, which separates the Seton and Bridge drainages.

Carpenter Lake is about 50 kilometres in length, although its upper reaches beyond the flooded gold mining town of Minto City are usually mudflat due to fluctuations in the level of the reservoir.

The lake is named after a Mr. Carpenter, an engineer who first moved to Canada in 1909 and performed much of the early design work on the power project for the firm of Sanderson and Porter, and supervised construction of the first tunnels through Mission Ridge from 1927 to 1931.

This article about a location in the Cariboo Regional District, Canada is a stub.