HMCS CC-2 was a CC-class submarine used by the Royal Canadian Navy. The ship was launched in 1913 in Seattle, Washington as the submarine Antofagasta for Chile. This deal fell through and the boat, along with HMCS CC-1, was offered to British Columbia's premier Sir Richard McBride, just nine days before the United Kingdom's declaration of war in 1914. On 4 August 1914, the day war was declared, the boat departed at night for handover to British Columbia authorities near Victoria, British Columbia. The Dominion Government of Canada later ratified the sale although there was a Parliamentary investigation of the cost of both boats, over twice the annual budget for the entire Royal Canadian Navy in 1913–14. CC-2 served in the Royal Canadian Navy from 1914 to 1920, when the submarine was discarded and broken up in 1925.

The CC-class submarine was the first class of submarines used by the Royal Canadian Navy. Designed as diesel-electric submarines for use as coastal defence, they were originally purchased by the province of British Columbia from a shipbuilder in Seattle, Washington, which had built the submarines for the Chilean Navy. Acquired by Canada they saw no battle while in service during the First World War and were paid off in 1920. They were the first Canadian warships to pass through the Panama Canal. Both ships were discarded in 1925.