Mackenzie is a district municipality within the Fraser-Fort George Regional District in central British Columbia, Canada. The community is located at the south end of Williston Lake. The townsite, established by Alexandra Forest Industries (acquired by BC Forest Products in 1967) and Cattermole Timber (partnered with Jujo Paper in 1970 to create Finlay Forest Industries), was named for Sir Alexander MacKenzie (1764–1820).