Courtenay is a city on the east coast of Vancouver Island, in the Canadian province of British Columbia. It is the largest community and only city in the area commonly known as the Comox Valley, and it is the seat of the Comox Valley Regional District, which replaced the Comox-Strathcona Regional District. Courtenay is 4 km west of the town of Comox, 7 km northeast of the village of Cumberland, 5 km northwest of the unincorporated settlement of Royston, and 108 km northwest of Nanaimo. The city, along with Nanaimo and Victoria, is home to The Canadian Scottish Regiment (Princess Mary's), a Primary Reserve infantry regiment of the Canadian Armed Forces.