The minelayer HNoMS Frøya was built for the Royal Norwegian Navy by the naval shipyard in Horten during World War I, with yard number 108. A fast ship for her time, she was kept in service until the German invasion of Norway in 1940. At some point between her commissioning and 1940, a 76 mm gun was added to her armaments. Frøya was the first purpose-built minelayer commissioned into the RNoN.