HMCS Gulnare was a Canadian government ship that served as a patrol boat and guard vessel for the Royal Canadian Navy (RCN) during the First World War. Acquired by the Canadian government in 1902, Gulnare was used for fisheries patrol and hydrographic survey duties until 1914. Following the war, Gulnare was used to intercept smugglers. Returned to government service in 1920, the vessel was converted to a lightship in 1925 and sold in 1937 to private interests. The vessel was broken up for scrap in the late 1940s.