37 Military units and formations of the United Kingdom

The 10th Railway Engineer Squadron, known operationally as 10 RW Squadron. The squadron was first formed during the pre-war expansion of the army in 1939 just before Second World War. The squadron was finally disbanded in 2013 following the initial Army 2020 reforms.

The Joint Rapid Reaction Force (JRRF) is a formation of the British Armed Forces; it consists of a pool of specialised units from all three armed services tasked with rapid deployment worldwide at short notice. The force is intended to be capable of mounting operations up to medium scale warfighting. It can be employed nationally, or multinationally under the auspices of NATO, the European Union, the United Nations or any other coalition.

HMS Cruizer was a Snake-class ship-sloop launched in 1828 for the British Royal Navy. The ship was built as a revival of the retired Snake-class ship-sloops. The Navy converted her to a brig in 1831, back to a ship in 1840, and sold her at Bombay in 1849

This is a list of amphibious warfare ships of the Royal Navy of the United Kingdom.

The battlecruiser was the brainchild of Admiral Sir John ("Jacky") Fisher, the man who had sponsored the construction of the world's first "all big gun" warship, HMS Dreadnought. He visualised a new breed of warship with the armament of a battleship, but faster, lighter, and less heavily armoured. The first three battlecruisers, the Invincible class, were laid down while Dreadnought was being built in 1906.

This is a list of corvette and sloop classes of the Royal Navy. The original term for ships of fewer than 28 (carriage) guns, but at least 20 guns, was "post ship"; the term 'corvette' was not introduced into the Royal Navy until the 1830s, and at that time its use replaced both the larger sloops and also what had previously been categorised officially as 'post ships', i.e. ships of 20, 22 or 24 guns which were so-called because they were the lowest grade of warship which could be commanded by a 'post captain'; as such, they formed the lower portion of the sixth rate.

This is a list of cruisers of the Royal Navy of the United Kingdom from 1877 until the last cruiser was decommissioned more than a century later. There are no longer any cruisers in the Royal Navy.

This is a list of destroyer classes of the Royal Navy of the United Kingdom, organised chronologically by entry into service.

This is a list of dreadnought battleships of the Royal Navy of the United Kingdom.

This is a list of early warships belonging to the English sovereign or the English Government, the precursor to the Royal Navy of England. These include major and minor warships from 1485 until 1660, the latter being the year in which the Royal Navy came formally into existence with the Restoration of Charles II. Between Charles I's execution in 1649 and the Restoration eleven years later, the Navy became the property of the state, under which it expanded dramatically in size.

The professional head of the Royal Navy is known as the First Sea Lord and Chief of the Naval Staff (1SL/CNS).

A gun-brig was a small brig-rigged warship that enjoyed popularity in the Royal Navy during the Napoleonic Wars, during which large numbers were purchased or built. In general these were vessels of under 200 tons burthen, and thus smaller than the more common Cherokee-class brig-sloops or the even larger Cruizer-class brig-sloops. The gun-brigs generally carried 12 guns, comprising two long guns in the chase position and ten carronades on the broadsides.

This is a list of gunboat and gunvessel classes of the Royal Navy.

This is a list of monitors of the Royal Navy of the United Kingdom.

This is a list of patrol boats of the Royal Navy.

The British Royal Navy built a series of pre-dreadnought battleships as part of a naval expansion programme that began with the Naval Defence Act 1889. These ships were characterised by a main battery of four heavy guns—typically 12-inch (305 mm) guns—in two twin mounts, a secondary armament that usually comprised 4.7-to-6-inch guns, and a high freeboard. Primarily concerned with maintaining its "two-power standard" of numerical superiority over the combined French and Russian fleets, the Royal Navy built or purchased a total of fifty-two battleships of this type prior to the 1906 completion of the revolutionary all-big-gun Dreadnought, which gave the pre-dreadnoughts their name. William Henry White served as the Director of Naval Construction from 1885 to 1902 and thus oversaw the development of most of the pre-dreadnoughts.

This is a list of shore establishments of the Royal Navy and Royal Naval Reserve.

This is a list of Royal Navy seaplane carriers.

This is an alphabetical list of the names of all ships that have been in service with the Royal Navy, or with predecessor fleets formally in the service of the Kingdom of England or the Commonwealth of England. The list also includes fictional vessels which have prominently featured in literature about the Royal Navy. Names are traditionally re-used over the years, and have been carried by more than one ship.

This is a list of Royal Navy ship names starting with B.

This is a list of Royal Navy ship names starting with C.

This is a list of Royal Navy ship names starting with D, E, and F.

This is a list of Royal Navy ship names starting with G and H.

This is a list of Royal Navy ship names starting with I, J, K, and L.

This is a list of Royal Navy ship names starting with M and N.

This is a list of Royal Navy ship names starting with the letters O, P and Q.

This is a list of Royal Navy ship names starting with R, S, and T.

This is a list of Royal Navy ship names starting with U, V, W, X, Y, and Z.

This is a list of ships of the line of the Royal Navy of England, and later of Great Britain, and the United Kingdom. The list starts from 1660, the year in which the Royal Navy came into being after the restoration of the monarchy under Charles II, up until the emergence of the battleship around 1880, as defined by the Admiralty.

This is a list of submarine classes of the Royal Navy of the United Kingdom. Dates of construction given.

This is a list of support ships of the Royal Navy of the United Kingdom. There are currently no active ships. In World War I, obsolete hulks and cruisers were generally used for maintenance and support. Many commercial vessels were taken up from trade during both wars to act as depot ships. The first ship built specifically for the role was the Medway of 1928. Converted ships below are given with dates of conversion.

This is a list of torpedo boat classes of the Royal Navy of the United Kingdom, organised chronologically by entry into service. This article's coverage is restricted to the steam-powered torpedo boats built for or acquired by the British Navy between 1875 and 1905; the final batch of 36 steam-powered torpedo boats from 1906 to 1908 were originally rated as coastal destroyers and will be found under Cricket-class destroyers, while later torpedo boats powered by internal combustion engines will be found under Motor Torpedo Boats

Royal Navy Dockyards were state-owned harbour facilities where ships of the Royal Navy were built, based, repaired and refitted. Throughout its history, the Royal Navy has made extensive use of private shipyards, both at home and abroad; but at the same time it also had a policy of establishing and maintaining its own dockyard facilities. Portsmouth was the first ; it was followed by Deptford, Woolwich, Chatham and others. By the 18th century, Britain had a string of these state-owned naval dockyards, located not just around the country but across the world; each yard was sited close to a safe harbour or anchorage used by the fleet. Most Royal Dockyards had a dual function, providing for both ship building and ship maintenance. Over time, they accrued additional on-site facilities for the support, training and accommodation of naval personnel.

The Somaliland Camel Corps (SCC) also referred to as the Somali Camel Corps, was a unit of the British Army based in British Somaliland. It lasted from the early 20th century until 1944.

The UK Joint Expeditionary Force (JEF) is a United Kingdom-led expeditionary force which may consist of, as necessary, Denmark, Finland, Estonia, Latvia, Lithuania, the Netherlands, Sweden and Norway. It is distinct from the similarly named Franco-British Combined Joint Expeditionary Force.

HMS Volage was a Sixth-rate sailing frigate launched in 1825 for the Royal Navy. At one point geologist Thomas Abel Brimage Spratt served aboard her.