12 Lists of admirals

Admiral of the Fleet is a five-star naval officer rank and the highest rank of the Royal Navy formally established in 1688. The five-star NATO rank code is OF-10, equivalent to a field marshal in the British Army or a marshal of the Royal Air Force. Other than honorary appointments no new admirals of the fleet have been named since 1995.

Admirals from Croatia served in many naval forces on the eastern Adriatic seaboard. First admirals were mentioned in 14th century as commanders of the royal fleet of Croatian-Hungarian king Louis I. Officers from today's Croatia served in various navies in control of Croatia or its parts. For instance, Jusuf Mašković served as a grand admiral of Ottoman Navy in 1630s; Ivan of Vrana was a Venetian admiral in late 16th century, taking part in the Battle of Lepanto. Croatian personnel served in the Venetian Navy until its demise in 1797 and, in modern times, in Habsburg/Austro-Hungarian Navy as Croatia was a constituent part of the monarchy. First Croatian admirals distinguished themselves commanding Habsburg ships in First Italian War of Independence in 1848.

The droungarios of the Fleet, sometimes anglicized as Drungary of the Fleet, was the commander of the Imperial Fleet, the central division of the Byzantine navy stationed at the capital of Constantinople, as opposed to the provincial (thematic) fleets. From the late 11th century, when the Byzantine fleets were amalgamated into a single force under the megas doux, the post, now known as the Grand droungarios of the Fleet, became the second-in-command of the megas doux and continued in this role until the end of the Byzantine Empire.

The First Lord of the Admiralty, or formally the Office of the First Lord of the Admiralty, was the political head of the Royal Navy who was the government's senior adviser on all naval affairs and responsible for the direction and control of Admiralty as well as general administration of the Naval Service of the United Kingdom, that encompassed the Royal Navy, the Royal Marines and other services. It was one of the earliest known permanent government posts. Apart from being the political head of the Royal Navy the post holder simultaneously held the title of the President of the Board of Commissioners for Exercising the Office of Lord High Admiral. The office of First Lord of the Admiralty existed from 1628 until it was abolished when the Admiralty, Air Ministry, Ministry of Defence and War Office were all merged to form the new Ministry of Defence in 1964.

The following is a list of the Admirals of the Imperial Japanese Navy during its existence from 1868 until 1945.

The Lord High Admiral is the titular head of the Royal Navy. Most have been courtiers or members of the Royal Family, and not professional naval officers. The office of Lord High Admiral is one of the nine English Great Officers of State.

Admirals of Sweden have existed since 1522.

Chom Phon Ruea or Admiral of the Fleet is the most senior naval officer rank of the Royal Thai Navy. Today it is only ceremonially held by members of the Thai Royal family. The Royal Thai Army equivalent is known as just Chom Phon and Chom Phon Akat for the Royal Thai Air Force.

This is a complete list of four-star admirals in the United States Coast Guard. The rank of admiral is the highest rank in the U.S. Coast Guard. It ranks above vice admiral and below Fleet Admiral.

This is a complete list of four-star admirals in the United States Navy. The rank of admiral is the highest rank normally achievable in the U.S. Navy. It ranks above vice admiral and below fleet admiral.

This is a complete list of four-star admirals in the United States Public Health Service Commissioned Corps. The rank of admiral, ranks above vice admiral and is the highest rank achievable in the U.S. Public Health Service Commissioned Corps.

The vice-admiralties of the coast were posts established in each of the twenty maritime counties of England, the North and South of Wales, and the four provinces of Ireland. The officer holders, designated as "vice-admirals", were responsible for naval administration in their county, and were deputies of Lord High Admiral.