List of mine countermeasure vessels of the Royal Navy

The Hunt class is a class of thirteen mine countermeasure vessels of the Royal Navy. As built, they combined the separate roles of the traditional minesweeper and that of the active minehunter in one hull, but later modifications saw the removal of mine-sweeping equipment. They have a secondary role as offshore patrol vessels.

HMS Ledbury, the second ship of the name, is a Hunt-class mine countermeasures vessel of the Royal Navy. She was launched in December 1979 and commissioned on 11 June 1981, the second ship of her class. She cost £65 million at time of building, which was at the time the most expensive cost-per-metre for any class of ship built by the Royal Navy. Most of this cost went into the research and development of Ledbury's glass reinforced plastic hull.

HMS Cattistock, the third ship of this name, is a Hunt-class mine countermeasures vessel of the Royal Navy. She was launched in 1981 and commissioned on 5 March 1982, the third ship of her class.

HMS Brocklesby is a Hunt-class mine countermeasures vessel of the British Royal Navy, her primary purpose is to find and neutralise sea mines using a combination of; Sonar, Mine Clearance Divers and the Seafox remotely operated vehicle (ROV). The class are the largest warships of glass-reinforced plastic (GRP) construction, which gives the vessels a low magnetic signature. In addition to her mine countermeasures activities, Brocklesby acts as an offshore patrol vessel, undertaking coastal patrol and fisheries protection duties.

HMS Middleton is a Hunt-class mine countermeasures vessel of the British Royal Navy. As of 2021, she forms part of Nine Mine Countermeasures Squadron operating out of HMS Jufair in Bahrain.

HMS Chiddingfold is a Hunt-class mine countermeasures vessel of the British Royal Navy. She was launched in October 1983 by her sponsor, Lady Anne Kennon, and formally entered the service of the Royal Navy in October 1984. Chiddingfold is a minehunter, and her purpose is to find and destroy mines, not only in a time of war but also in peacetime. There are about a quarter of a million mines still active from the Second World War alone and they pose a major threat to both military and civilian ships. Chiddingfold is able to enter some types of minefields without the mines detonating. This is because she is made of glass-reinforced plastic and all fixtures within the ship are made of non-ferrous metals, keeping the ship's magnetic signature to the bare minimum.

HMS Hurworth is a Hunt-class mine countermeasures vessel of the British Royal Navy.

HMS Penzance is a Sandown-class minehunter commissioned by the Royal Navy in 1998. She is named after the seaside town of Penzance in Cornwall, and is the fourth vessel to bear the name.

HMS Pembroke is a Sandown-class minehunter of the Royal Navy. She was the second ship launched of the second batch of the class, which had several improvements over the first five ships built. The ship was posted for three years to the Persian Gulf between 2009 and 2012. Pembroke has since been deployed in international exercises and in historic ordnance detection in home waters. Pembroke was the first of the Royal Navy’s Mine Countermeasures Vessels to be fitted with the Oceanographic Reconnaissance Combat Architecture combat system to replace the previous NAUTIS combat system in early 2020.

HMS Grimsby was a Sandown-class minehunter of the British Royal Navy, and the second ship to bear the name.

HMS Bangor is a Sandown-class minehunter commissioned by the Royal Navy in 1999. Designed to hunt mines in depths of up to 200 m using the Sonar 2093 Variable Depth Sonar (VDS) meaning that she can conduct mine clearance operations throughout the continental shelf. She is named after the Northern Ireland seaside town of the same name, and the second Royal Navy vessel to bear the name.

HMS Shoreham was a Sandown-class minehunter of the British Royal Navy. She was the fifth vessel to bear the name. From 2018 to 2021, Shoreham was deployed at UKNSF Bahrain together with three other mine countermeasures ships as part of 9 Mine Countermeasures Squadron on Operation Kipion. In 2022 she was decommissioned and is to be transferred to Ukraine.

A naval mine is a self-contained explosive device placed in water to damage or destroy surface ships or submarines. Unlike depth charges, mines are deposited and left to wait until they are triggered by the approach of, or contact with, any vessel or a particular vessel type, akin to anti-infantry vs. anti-vehicle mines. Naval mines can be used offensively, to hamper enemy shipping movements or lock vessels into a harbour; or defensively, to protect friendly vessels and create "safe" zones. Mines allow the minelaying force commander to concentrate warships or defensive assets in mine-free areas giving the adversary three choices: undertake an expensive and time-consuming minesweeping effort, accept the casualties of challenging the minefield, or use the unmined waters where the greatest concentration of enemy firepower will be encountered.

A paddle steamer is a steamship or steamboat powered by a steam engine that drives paddle wheels to propel the craft through the water. In antiquity, paddle wheelers followed the development of poles, oars and sails, where the first uses were wheelers driven by animals or humans.

Naval trawlers are vessels built along the lines of a fishing trawler but fitted out for naval purposes; they were widely used during the First and Second World Wars. Some—known in the Royal Navy as "Admiralty trawlers"— were purpose-built to naval specifications, others adapted from civilian use. Fishing trawlers were particularly suited for many naval requirements because they were robust vessels designed to work heavy trawls in all types of weather, and had large clear working decks. A minesweeper could be created by replacing the trawl with a mine sweep. Adding depth charge racks on the deck, ASDIC sonar below, and a 3-inch (76 mm) or 4-inch (102 mm) gun in the bow equipped the trawler for anti-submarine duties.

The Flower class comprised five sub-classes of sloops built under the Emergency War Programme for the Royal Navy during World War I, all of which were named after various flowers. They were popularly known as the "herbaceous borders", in humorous reference to a well-known adage about the Royal Navy, as well as to a type of garden border popular in the United Kingdom.

In the 18th century and most of the 19th, a sloop-of-war in the Royal Navy was a warship with a single gun deck that carried up to eighteen guns. The rating system covered all vessels with 20 guns and above; thus, the term sloop-of-war encompassed all the unrated combat vessels, including the very small gun-brigs and cutters. In technical terms, even the more specialised bomb vessels and fireships were classed as sloops-of-war, and in practice these were employed in the sloop role when not carrying out their specialised functions.

The Hunt-class minesweeper was a class of minesweeping sloop built between 1916 and 1919 for the Royal Navy. They were built in two discrete groups, the earlier Belvoir group designed by the Ailsa Shipbuilding Company and the subsequent Aberdare group designed by the Admiralty. They were classed as Fleet Minesweeping Sloops, that is ships intended to clear open water. The Belvoir group were named after British fox hunts. Those of the Aberdare group were originally named after coastal towns, watering places and fishing ports, some of which happened to be hunts by coincidence. However, all were soon renamed after inland locations to prevent confusion caused by the misunderstanding of signals and orders.

Ailsa Shipbuilding Company was a Scottish shipbuilding company based in Troon and Ayr, Ayrshire.

A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping.

The Racecourse-class minesweepers were 32 ships delivered to the Royal Navy during the First World War. They were built to two related designs as paddlewheel coastal minesweeping sloops under the Emergency War Programme. The vessels were reasonable sea-boats, but lost speed badly in a seaway when the paddle boxes tended to become choked with water. The class is also widely referred to as the Ascot class and Improved Ascot class.

The Halcyon class was a class of 21 oil-fired minesweepers built for the British Royal Navy between 1933 and 1939. They were given traditional small ship names used historically by the Royal Navy and served during World War II.

The Bangor-class minesweepers were a class of warships operated by the Royal Navy (RN), Royal Canadian Navy (RCN), Imperial Japanese Navy (IJN), and Royal Indian Navy (RIN) during the Second World War.