Lajoie Lake, also known as Little Gun Lake, is a small lake in the Bridge River Country of the West-Central Interior of British Columbia, Canada, located three miles west of the community of Gold Bridge and just southwest of Gun Lake, which is also known as Big Gun Lake. The two lakes together are known as the Gun Lakes and both are recreational communities with a history of such settlement dating back to the 1920s. The lake is approximately 3 km² (1 sq mi) in size and is drained by Lajoie Creek, which drains into Big Gun Lake and from that lake's northeastern end into Gun Creek.