Cranbrook was the name of a provincial electoral district in the Canadian province of British Columbia centred on the town of Cranbrook in the southern Rockies and including nearby Kimberley and other towns in the southern end of the Rocky Mountain Trench.
Cranbrook riding made its first appearance on the hustings in the election of 1903. In a redistribution after the 1963 election the area covered by this riding was incorporated into the new Kootenay riding (same name but smaller than the original 1871-vintage Kootenay riding).
For other current and historical electoral districts in the Kootenay region, please see Kootenay (electoral districts).