"Tasis Canal (not Tahsis)" adopted in the 18th Report of the Geographic Board of Canada, 31 March 1924. Spelling changed to Tahsis Canal 1 February 1938. Form of name changed to Tahsis Inlet 2 December 1947 (file N.2.33)

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

[8 September 1865] "I found out that the names given to different places as arose from Indian names misconstrued, for instance... Tasis Canal or Tah-cease means where the water travel stops and they have to walk." (John Buttle, Journal of the Proceedings of the Vancouver Island Exploring Expedition, June 19 - October 8, 1865, p.92.) Typescript in Provincial Archives. [The Provincial Archives cites the same journal entry for both Tahsish Inlet & River tributary to Kyuquot Sound, and Tahsis Inlet & River tributary to Nookta Sound.]

Source: included with note

From an Indian word pronounced "Tah-shees" meaning "way", "passage" or "crossing". An old Indian route across Vancouver Island was up Tahsis Inlet and River, then down Nimpkish River and Lake. Jewitt, in the account of his captivity, mentions that early in September 1803 the Nootka Indians, following their usual practice, moved to their autumn and winter quarters at "Tashees and Cooptee".

Source: Akrigg, Helen B. and Akrigg, G.P.V; 1001 British Columbia Place Names; Discovery Press, Vancouver 1969, 1970, 1973.