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 and Cattermole Timber, was named for Sir Alexander MacKenzie (1764–1820).

The Regional District of Fraser–Fort George (RDFFG) is a regional district located in the Central Interior of British Columbia, Canada. It is bounded by the Alberta border to the east, the Columbia–Shuswap and Thompson–Nicola regional districts to the south and southeast, Cariboo Regional District to the southwest, the Regional District of Bulkley–Nechako to the west, and the Peace River Regional District to the north and northeast. As of the Canada 2011 Census, Fraser–Fort George had a population of 91,879 and a land area of 51,083.73 km2. The offices of the regional district are located at Prince George.