This lake was named by J.R. Akins, DLS, during his 1915 survey of the 6th Meridian. The person for whom the lake was named was not stated in Akins' field correspondence. It was most probably named after one of three colleagues, all called Beatty: James Edward Beatty, of Sarnia, Ontario, commissioned Dominion Land Surveyor on November 18, 1904; Frank Weldon Beatty, of Pembroke, Ontario, or William Bemamm Beatty both of whom were commissioned Dominion Land Surveyor on May 18, 1914. There is also a possibility that Beatty refers to one of two earlier Dominion Surveyors 'who received their commission on April 14, 1872, David Beatty and Walter Beatty.

Approximately 153 km north north-west of High Level.