Taseko recorded as being an Indigenous place name, but at the time of recording (date not cited) the meaning was unkown. Language not identified. Letter to R.P. Bishop from H.E. Taylor (Agent, William Lake B.C.) "I enquired from a Nemiah Valley [First Nation member] this week, who lives near Taseko Lakes, and he says that it is an old [First Nation] word used long ago and that none of the present people know what it means. I infer that the very old [First Nations people] used words which have become forgotten. I will however endeavour to find out just what this word means and will write you again if necessary" (file number/date not cited recorded on name card). (T.6.54)

Source: BC place name cards & correspondence, and/or research by BC Chief Geographer & Geographical Names Office staff.

"Dasiqox" is the Tŝilhqot’in name for Taseko River. The name is a proper name and has been in use for so long that a direct translation to English is difficult (advice from Tŝilhqot’in National Government, 2019).

Source: included with note