The rank of superadmiral was a grade of admiral in naval service, superior to an admiral. The flag officer rank of superadmiral was used by service organizations, including the Nine Worlds Confederation, thousands of years ago.

Goluscz was a superadmiral of the Nine Worlds Confederation warfleet at the Battle of Rhinate in December, 57 BCE (reference stardate −20/5712). (FASA RPG - The Orions module: Book of Common Knowledge)