Admiral of the Fleet is a five-star admiral. This was a rank created near the end of WWII in the US Navy, and bestowed upon King, Nimitz, Halsey and Leahy. At the same time the rank of General of the Army was created as a five star general. There were a total of nine officers promoted to five star rank, and there have been none since.
William Halsey is the naval admiral known as Bull.
Admiral Farragut
Admiral Patricio Montojo, Commander Naval Fleet Manila. Admiral Pascual Cervera, Commander Naval Fleet Cuba.
admiral
The corresponding naval ranks are normally fleet admiral, grand admiral or admiral of the fleet.
Admiral David Glasgow Farragut was the first American Naval Officer to obtain and hold all 3 Admiral ranks.
Admiral Ernest King was the US top naval officer. Admiral Chester Nimitz was the top Pacific naval officer.
The commander of the Federal naval forces was Rear Admiral Porter. There is no such thing as a naval general.
Admiral Mahan
An admiral of the fleet is the highest grade of flag officer authorized in the United States Navy, or a naval officer of equivalent grade in the naval offices of other nations.
Admiral George Dewey.
Admiral Montojo in the Philippines. Admiral Cervera in Cuba.