The Comox Valley is a region on the east coast of Vancouver Island, British Columbia, Canada, that includes the city of Courtenay, the town of Comox, the village of Cumberland, and the unincorporated settlements of Royston, Union Bay, Fanny Bay, Black Creek, and Merville. The communities of Denman Island and Hornby Island are also considered part of the Comox Valley. The Comox Valley contains the 47th largest metropolitan area in Canada with a population of about 76,000 as of 2022.

Vancouver Island is an island in the northeastern Pacific Ocean and part of the Canadian province of British Columbia. The island is 456 km (283 mi) in length, 100 km (62 mi) in width at its widest point, and 32,100 km2 (12,400 sq mi) in total area, while 31,285 km2 (12,079 sq mi) are of land. The island is the largest by area and the most populous along the west coasts of the Americas.