HMCS Discovery is a Royal Canadian Navy Reserve division and shore facility based in Vancouver, British Columbia. Created during World War II from the Vancouver Half Company of the Royal Naval Canadian Volunteer Reserve, Discovery was used for recruitment and training, and provided almost 8,000 personnel during the war. Discovery continued in its training role following the war, and also serves as headquarters for several Reserve and Cadet units.

The stone frigate takes its name from HMS Discovery, the ship used by George Vancouver to chart most of North America's north-western coast. Originally based at the Stanley Park Barracks, in 1944 Discovery moved to its current location on Deadman's Island, in Coal Harbour, adjacent to Stanley Park.

HMCS Discovery has a crew of about 175 officers and non-commissioned members (NCMs). The 2011 command team consisted of: commanding officer, Lieutenant Commander Phil Horner; executive officer, Lieutenant Commander Bryan Price; and coxswain, Petty Officer First Class Rod Tulett.