Cowichan Lake
Feature Type:Lake - Inland body of standing water.
Status: Official
Name Authority: BC Geographical Names Office
Relative Location: W of Duncan at head of Cowichan River, Cowichan Land District
Latitude-Longitude: 48°52'29"N, 124°15'35"W at the approximate centre of this feature.
Datum: WGS84
NTS Map: 92C/16
Origin Notes and History:

"Cowichan Lake (not Cowichin nor Cowitchin)" adopted in the 7th Report of the Geographic Board of Canada, 30 June 1908.

Source: Canadian Geographical Names Database, Ottawa

The name "Cowichan" is that of the confederation of approximately 11 loosely-affiliated Salish tribes that occupied the Fraser River delta, the Gulf Islands, and much of southern Vancouver Island. Their name means "the warm land," and has special reference to the Cowichan Valley. The Cowichan's own name for the lake is "Kaatza" meaning simply "the lake". See also Cowichan Bay and Cowichan River for origin information.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office