Taseko Lakes was adopted in the 10th Report of the Geographic Board of Canada, 30 June 1911. Together the lakes are known as Taseko Lakes; individually, the northern lake is called Lower Taseko Lake and the southern lake is called Upper Taseko Lake. The individual names were adopted 5 August 1954 on 92O.
Source: BC place name cards & correspondence, and/or research by BC Chief Geographer & Geographical Names Office staff.
"Dasiqox Biny" is a Tŝilhqot’in name meaning 'lake of Dasiqox' where Dasiqox is the Tŝilhqot’in name for Taseko River, and "biny" means ’lake.’ The name is a proper noun and has been in use for so long that a direct translation to English is difficult. The suffix "-qox" means river (yeqox) but "Dasi-" has no direct translation. Opinions vary on its origin (advice from Tŝilhqot’in National Government, 2018).