Origin Notes and History:
Trépanier (Post Office and steamer landing) adopted 6 October 1936 on Ottawa file OBF 1525. Form of name changed to Trépanier (community) 29 November 1984 on file 203-2. See Trépanier Creek.
Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office