Fort St. James is a district municipality and former fur trading post in northern central British Columbia, Canada. It is located on the south-eastern shore of Stuart Lake in the Omineca Country, at the northern terminus of Highway 27, which connects to Highway 16 at Vanderhoof.

Stuart Lake, or Nak'albun in the Carrier (Dakelh) language is a lake situated in the Northern Interior of British Columbia, Canada. The town of Fort St. James is situated by the lake near the outlet. Stuart Lake is 66 kilometres (41 mi) long, 10 kilometres (6.2 mi) wide and relatively shallow, with an average depth of 26 metres (85 ft). There are several privately owned islands on Stuart lake.