Hudson Bay Mountains (plural) adopted in the 18th Report of the Geographic Board of Canada, 31 March 1924. Form of name changed to Hudson Bay Mountain 23 April 1940 on Geological Survey map titled Hudson Bay Mountain (file H.2.39).

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

"...locally known as Hudson Bay Mountain..." (BC Mines Report 1905, p.116); so-identified in 14 March 1911 letter from A.H. Whitcher to Geographic Board of Canada; so-labelled on BC map 3D, 1919, and on Geological Survey sheet 368A, Smithers, 1936. "...this is invariably referred to as Hudson Bay Mountain. The name would appear to apply to the one massive feature and not to the individual peaks, hence it is suggested that the singular form is more appropriate...." (1939 names list for Geological Survey map, where name is applied from Trout (Sheedy) Creek south to Telkwa River, and Bulkley River west to the valleys of Pine Creek, Aldrich, Dennis & Hankin Lakes. On more recent maps the name has been applied south of Silvern & Toboggan Creeks.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

A well-established local name, referring to the mountain's proximity to a ranch once owned by the Hudson's Bay Company at nearby Driftwood Creek.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office