Fleet Radio Unit, Melbourne (FRUMEL) is a United States-Australian-British signals intelligence unit, founded in Melbourne, Australia during World War II. It was one of two major Allied signals intelligence units, called Fleet Radio Units, in the Pacific theatres, the other being FRUPAC (also known as Station HYPO), in Hawaii. FRUMEL was an inter-navy organisation, subordinate to the Commander of the United States Seventh Fleet, while the separate Central Bureau in Melbourne (later Brisbane) was attached to the Allied South West Pacific Area command headquarters.