HMS Cossack (F03) was a British destroyer of the Royal Navy, launched in 1944. She was part of the C-class destroyers and served during the latter part of World War II. Cossack was known for her speed and agility, making her effective in various naval operations. After the war, Cossack continued to serve in the Royal Navy until her decommissioning in 1972. Throughout her service, she participated in numerous exercises and operations, showcasing the capabilities of post-war naval technology. Cossack was eventually sold for scrap, marking the end of her nearly three-decade-long career.