"Morice Lake (not Morrice Lake)" adopted in the 9th Report of the Geographic Board of Canada, 30 June 1910, in association with Morice River which drains the lake. Re-approved 6 October 1936 on 93L.

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

Labelled "Loring Lake" on Father Morice's 1907 map "Northern Interior of British Columbia", and on BC Lands' map 1A, 1912.

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

After the Rev. Father Adrien-Gabriel Morice, OMI (1859-1938), author of "The History of the Northern Interior of British Columbia; London, 1906, describing 20 years of explorations and missionary work in the province. See also Morice River.

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

The traditional Wet'suwet'en name is Wet-zuhn-buhn (pronounced wet-zin-bun), meaning the "blueish-green colour of the water." Morice River is called Wet-zuhn-kwa. In the Wet'suwet'en language "Kwa" refers to a river or stream, and "buhn" refers to a body of water like a lake. (information shared February 2005 by Gary R. George, as told by Rita A. George and the late Andrew George Sr., all Bulkley Valley residents of Wet'suwet'en ancestry.)

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