"Nechaco River" adopted in the 1909 Gazetteer of British Columbia on 93G/15. Spelling changed 30 June 1910 to "Nechako River" in the 9th Report of Canada, also listed in the 10th Report and 18th Report.
Source: BC place name cards & correspondence, and/or research by BC Chief Geographer & Geographical Names Office staff.
Almost certainly from the Carrier word meaning "big river."
Source: Akrigg, Helen B. and Akrigg, G.P.V; "British Columbia Place Names"; Sono Nis Press, Victoria 1986 /or University of British Columbia Press 1997, page 211.
Headwaters at 53 39 -124 57 on 93F/10.
Source: Canadian Geographical Names Database, Ottawa