HMS Codrington was the flotilla leader for the A-class destroyers built for the Royal Navy during the 1920s. During the Second World War she served in home waters and off the Norwegian coast, before being bombed and sunk on 27 July 1940 whilst in dock at Dover.

A flotilla leader was a warship of late 19th century and early 20th century navies suitable for commanding a flotilla of destroyers or other small warships, typically a small cruiser or a large destroyer. The flotilla leader provided space, equipment and staff for the flotilla commodore, including a wireless room, senior engineering and gunnery officers, and administrative staff to support the officers. Originally, older light or scout cruisers were often used, but in the early 1900s, the rapidly increasing speed of new destroyer designs meant that such vessels could no longer keep pace with their charges. Accordingly, large destroyer designs were produced for use as leaders.