North Cowichan is a district municipality established in 1873 on Vancouver Island, in British Columbia, Canada. The municipality is part of the Cowichan Valley Regional District. North Cowichan is noted for a landscape including forests, beaches, rivers, and lakes. The municipality encompasses the communities of Chemainus; Westholme; Crofton; Maple Bay; and "North Cowichan". The latter is an adjacent to City of Duncan and extending North to the Chemainus River and to Crofton.