Adopted 6 October 1936 on Geological Survey sheet 420A, Kettle River, as long-identified on maps.
Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office
Headwaters at 49 30 07 - 119 36 42 at outlet of Okanagan Lake. Flows southward into Osoyoos Lake at 49 04 33 - 119 31 04; emerges from Osoyoos Lake in Washington State, and channel continues south and southwest as Okanogan River [sic] to its' confluence with the Columbia River. Total length = 115 miles (BC portion = 43 miles)
Source: Canadian Geographical Names Database, Ottawa
"There are many theories as to the derivation of the name, but the majority agree that the compound word "Okanagan" contains the word for "head". One likely translation is "looking toward the upper end [head]"; another is "seeing the top or head", possibly referring to the summit of Mt. Chopaka. The anthropologist Teit wote, "Okanagan is said to be derived from the name of a place on Okanagan River, somewhere near the Falls, so named because it was the 'head' of the river, at least insofar as the ascent of salmon was concerned"." (Okanagan Indian Band website, 2013)