HMCS Whitethroat was a controlled minelayer based on the Isles-class naval trawler constructed for Canada in the United Kingdom during World War II. The ship was completed near the end of the war and most of its naval service was spent dismantling the defences erected during the war. In 1946 the ship was paid off and became a naval auxiliary and given the new prefix CNAV Whitethroat. As an auxiliary, Whitethroat was used a naval research platform and to repair undersea . Reactivated for the Korean War as a minelayer again, the vessel returned to auxiliary service on the Pacific Coast from 1954 to 1967. Whitethroat was sold for scrap in 1967.